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1985
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10
Helpful
10
Replies

Cannot SSH to 3750x

Mokhalil82
Level 4
Level 4

Hi

 

I installed a 3750x at a backup site, it passing through vlan traffic to my primary site, it also has an uplink to my backup router via a firewall. So doing both L2 and L3. I can ping it and ping other switches on the other end of this switch. But on this one it only lets me SSH to it via a neighboring switch and not directly.  I can SSH to all other switches.

I installed 2 of these switches last week which are only performing L2 functions but they let me SSH to them without issues using the same config. 

Here is my config, Can anyone spot what im missing, Thanks

Current configuration : 6811 bytes
!
version 12.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname xxxxxxxxxxxxxxxxxx
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$xIAS$YfpHVcSFHyf5iBbQgExAc.
!
username xxxxx privilege 15 secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
username xxxxx privilege 15 secret 5 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
!
!
no aaa new-model
switch 1 provision ws-c3750x-12s
system mtu routing 1500
ip routing
!
!
no ip domain-lookup
ip domain-name xxxxxxxx
!
!
crypto pki trustpoint TP-self-signed-3317733480
 enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-3317733480
 revocation-check none
 rsakeypair TP-self-signed-3317796480
!
!
crypto pki certificate chain TP-self-signed-3317733480
 certificate self-signed 01
  30820253 308201BC A0030201 02020101 300D9609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33333137 37393634 3830301E 170D3933 30333031 30303031
  32305A17 0D323030 31303130 30302030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 33313737
  39363438 3030819F 300D0609 2A464886 F70D0101 01050003 818D0030 81890281
  8100C3FF 16C2D6A7 970B5C5F 6950993F 36CB0D9C 66DEE660 C17F5BA1 CB94EED3
  CACB74D7 1E624FB0 B5D572B1 A36A9A5E 1A463BE2 F0E1739E 766913D8 2A0096D1
  6BAED9BE F34C3C76 4ADC47CA D23E9674 4442C9DD 33DD89B5 9E6FE2A7 2EE723CF
  A00E9F8A 1CDF8297 76F690B5 6819642F 653263B1 7FB87A3E B0BF297A EDD8F327
  F9AF0203 010001A3 7B307930 0F060355 1D130101 FF040530 030101FF 30260603
  551D1104 1F301D82 1B415443 2D44522D 33373530 582D436F 72652E50 41472E6C
  6F63616C 301F0603 551D2304 18301680 1435E0D0 085A7BFC 9025995A 55C52C84
  F49F897D 50301D06 03551D0E 04160414 35E0D008 5A7BFC90 25995A55 C52C84F4
  9F897D50 300D0609 2A864886 F70D0101 04050003 818100AE 700F3068 EAF19AB1
  02381328 CCE1CD37 E671AC2F DFD8590D CF1A511B 76F3E1BA 029E76C0 21DC3DB4
  8DF2D0BA 363CA718 C99E6927 0B011EAF 211F3262 7A91F6F2 F6B2E753 D7085AAF
  DBF0FCCA 3E8DD8E0 51ACEEAE 1FBCBAF4 6339D12C 0C63A86A 355103DA 32EF37DA
  68C04119 6A0811BB 8E312AC8 583E7C18 EFCB51D1 091B0D
  quit
!
spanning-tree mode mst
spanning-tree extend system-id
!
spanning-tree mst configuration
 name LJLA
 revision 1
 instance 1 vlan 1-200
 instance 2 vlan 201-2047
!
vlan internal allocation policy ascending
!
ip ssh version 2
!
!
interface Port-channel5
 description Link_to_xxxxxxxxxxxxxxxxxx
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,99,140,145,150,700
 switchport mode trunk
 storm-control broadcast level 30.00
!
interface FastEthernet0
 no ip address
 no ip route-cache cef
 no ip route-cache
 no ip mroute-cache
 shutdown
!
interface GigabitEthernet1/0/1
 description Link_to_xxxxxxxxxxxxxxxxxx
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface GigabitEthernet1/0/2
 description Link_to_xxxxxxxxxxxxxxxxx
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface GigabitEthernet1/0/3
 description xxxxxxxxxxxxxxxxxxxxxxxxx
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,99,140,145,150,700
 switchport mode trunk
 storm-control broadcast level 30.00
 channel-group 5 mode active
!
interface GigabitEthernet1/0/4
 description xxxxxxxxxxxxxxxxxxxxxxxx
 switchport trunk encapsulation dot1q
 switchport trunk allowed vlan 1,99,140,145,150,700
 switchport mode trunk
 storm-control broadcast level 30.00
 channel-group 5 mode active
!
interface GigabitEthernet1/0/5
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface GigabitEthernet1/0/6
!
interface GigabitEthernet1/0/7
!
interface GigabitEthernet1/0/8
!
interface GigabitEthernet1/0/9
!
interface GigabitEthernet1/0/10
!
interface GigabitEthernet1/0/11
!
interface GigabitEthernet1/0/12
 description Eternal_Link
 switchport access vlan 95
 switchport mode access
!
interface GigabitEthernet1/1/1
!
interface GigabitEthernet1/1/2
!
interface GigabitEthernet1/1/3
!
interface GigabitEthernet1/1/4
!
interface TenGigabitEthernet1/1/1
!
interface TenGigabitEthernet1/1/2
!
interface Vlan1
 ip address xxxxxxxxxxxxx 255.255.255.128
!
interface Vlan95
 ip address xxxxxxxxxxxxx 255.255.255.248
!
ip classless
ip route 0.0.0.0 0.0.0.0 xxxxxxxxxxxx
ip http server
ip http secure-server
!
access-list 50 remark Restrict SNMP to Networks
access-list 50 permit xxxxxxxxxxxx
access-list 50 deny   any log
snmp-server community public RO
snmp-server community private RW
snmp-server community !hub500 RW 50
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps tty
snmp-server enable traps cluster
snmp-server enable traps config-copy
snmp-server enable traps config
snmp-server enable traps entity
snmp-server enable traps cpu threshold
snmp-server enable traps bridge newroot topologychange
snmp-server enable traps stpx inconsistency root-inconsistency loop-inconsistency
snmp-server enable traps syslog
snmp-server enable traps vtp
snmp-server enable traps vlancreate
snmp-server enable traps vlandelete
snmp-server enable traps flash insertion removal
snmp-server enable traps port-security
snmp-server enable traps envmon fan shutdown supply temperature status
snmp-server enable traps mac-notification change move threshold
snmp-server enable traps vlan-membership
snmp-server host xxxxxxxxxx xxxxx
!
banner motd ^CC
***************************************************************
                Unauthorized login prohibited
***************************************************************^C

crypto key generate rsa
ip ssh version 2
ip ssh authentication-retries 3
!
line con 0
 login local
line vty 0 4
 login local
 transport input ssh
line vty 5 15
 login
!
end

IOS is c3750e-ipbasek9-mz.122-55.SE5.bin

License is IPServices

 

 

 

1 Accepted Solution

Accepted Solutions

The utilisation figures are not that bad so I'm not convinced that is the problem at the moment.

If you are other 3750Xs are not displaying the same symptoms it may be worth upgrading to the same IOS. It's always a good idea to have the same IOS for the same model if you can do that.

Jon

View solution in original post

10 Replies 10

Jon Marshall
Hall of Fame
Hall of Fame

What is the next hop device used in the default route ie. what device and model is it ?

Jon

Well the 3750x has 4 other switches connected to it so is passing the vlan traffic around. The uplink is to an asa5505 to which the default route is pointing to

 

I think that may be your problem.

If you try to connect from an IP on another subnet then this switch has to send the return traffic to the ASA because it is routing the traffic.

If the traffic gets to the ASA and the ASA then has to send it back out of the same interface then it won't do this by default.

You would need additional configuration on your firewall for this to happen.

Does it have to be the firewall as it's default gateway ?

Jon

Well the firewall is the default gateway and i have that uplink configured as an access port only allowing one vlan. That is the only uplink I can use.

I was thinking it would only send traffic destined to an address it does not know to its default gateway, if is receives an ssh request for its own ip, why would it try forwarding it using its default gateway

 

Thanks

if is receives an ssh request for its own ip, why would it try forwarding it using its default gateway

it's not the destination IP it is the source IP that is important ie. if the source IP is not on the same subnet as the switch then the return traffic has to be routed back so it must be sent to the firewall.

Perhaps I am not understanding properly.

Is it right to say if you are connecting from a device which is on a subnet that is also configured on this switch it works ?

And if you are connecting from a device that is on a subnet the switch does not know about it fails ?

Jon

Its a layer 3 switch with ip routing enabled. The address im am trying to SSH is the interface vlan address. So should the switch itself not be able to route between vlans. 

I can only ssh to it from one of the switches directly connected to it but the traffic to this directly connected switch goes via the 3750x. But even then it does not ssh the first time, it fails sometimes and connects some times.

Now all the switches are on the same management vlan, and the issue happens no matter which switch i connect from.

Another thing I have noticed is the 3750x is extremely slow when I am ssh'd to it, every command has a pause but its fine on console access. The cpu was at 10% and pinging to it or through it has normal response times

Would the IOS not have anything to do with this.

IOS is c3750e-ipbasek9-mz.122-55.SE5.bin

License is IPServices

If the source IP address of the device you coming from is in the same IP subnet as one of those configured on the switch then there is no routing to be done and yes that should work.

If the source IP is from a subnet that is not configured on the switch it has to send the packets back to the ASA.

The fact that sometime it works and doesn't and that it is extremely slow might suggest another issue.

Have you looked at the CPU usage to see what is happening ?

What IOS do you have on your other switches ?

Jon

The following is the CPU processes. Most other switches are old layer 2 switches, I have 2 new 3750x switches to which all my access switches connect to but routing is not enabled on these and they are using a slightly more recent ios, I cant remember the exact one. 

This 3750 was part of a stack previously, I have noticed in the flash it has an old ios and old backup file.

Directory of flash:/

    2  -rwx        3275   Mar 1 1993 00:30:35 +00:00  FDO1643P2MW_20150107085707955.lic
    3  -rwx        5428   Mar 1 1993 01:00:39 +00:00  config.text
    4  -rwx    14597076   Mar 1 1993 00:02:42 +00:00  c3750e-ipbasek9-mz.122-55.SE5.bin
    5  -rwx        3435   Mar 1 1993 01:00:39 +00:00  private-config.text
    6  -rwx        4816   Mar 1 1993 00:48:22 +00:00  vlan.dat
    7  -rwx        1159  Aug 28 2013 13:13:47 +00:00  config.text.backup
    8  drwx        4096   Mar 1 1993 00:33:07 +00:00  c3750e-universalk9-mz.150-1.old
  473  -rwx          24  Aug 28 2013 13:13:47 +00:00  private-config.text.backup
  475  -rwx        5144   Mar 1 1993 00:59:58 +00:00  multiple-fs

 

CPU utilization for five seconds: 10%/0%; one minute: 8%; five minutes: 8%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
   1           0        37          0  0.00%  0.00%  0.00%   0 Chunk Manager
   2          51      1284         39  0.00%  0.00%  0.00%   0 Load Meter
   3           0        55          0  0.00%  0.00%  0.00%   0 DHCPD Timer
   4       78961      3492      22611  0.00%  0.67%  1.01%   0 Check heaps
   5           0         2          0  0.00%  0.00%  0.00%   0 Pool Manager
   6           0         2          0  0.00%  0.00%  0.00%   0 Timers
   7           0         1          0  0.00%  0.00%  0.00%   0 License Client N
   8       12165       108     112638  0.00%  0.10%  0.13%   0 Licensing Auto U
   9           0         1          0  0.00%  0.00%  0.00%   0 Image License br
  10          42       172        244  0.00%  0.00%  0.00%   0 ARP Input
  11           0         1          0  0.00%  0.00%  0.00%   0 CEF MIB API
  12           0         1          0  0.00%  0.00%  0.00%   0 AAA_SERVER_DEADT
  13           0         2          0  0.00%  0.00%  0.00%   0 AAA high-capacit
  14           0         1          0  0.00%  0.00%  0.00%   0 Policy Manager
  15         108        30       3600  0.00%  0.00%  0.00%   0 Entity MIB API
  16           0         1          0  0.00%  0.00%  0.00%   0 IFS Agent Manage
  17           0       108          0  0.00%  0.00%  0.00%   0 IPC Dynamic Cach
  18           0         1          0  0.00%  0.00%  0.00%   0 IPC Zone Manager
  19           8      6417          1  0.00%  0.00%  0.00%   0 IPC Periodic Tim
  20           0         1          0  0.00%  0.00%  0.00%   0 IPC Managed Time
  21          35      6417          5  0.00%  0.00%  0.00%   0 IPC Deferred Por
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  22           9       430         20  0.00%  0.00%  0.00%   0 IPC Seat Manager
  23           0         1          0  0.00%  0.00%  0.00%   0 IPC Session Serv
  24         134         4      33500  0.00%  0.00%  0.00%   0 PrstVbl
  25           0         1          0  0.00%  0.00%  0.00%   0 Crash writer
  26           0         1          0  0.00%  0.00%  0.00%   0 License IPC stat
  27           0         1          0  0.00%  0.00%  0.00%   0 License IPC serv
  28          59      6383          9  0.00%  0.00%  0.00%   0 GraphIt
  29           0         2          0  0.00%  0.00%  0.00%   0 SMART
  30           0         2          0  0.00%  0.00%  0.00%   0 XML Proxy Client
  31           0         1          0  0.00%  0.00%  0.00%   0 ARP Snoop
  32          57      6420          8  0.00%  0.00%  0.00%   0 Dynamic ARP Insp
  33           0         1          0  0.00%  0.00%  0.00%   0 Critical Bkgnd
  34          75      2386         31  0.00%  0.00%  0.00%   0 Net Background
  35           0         3          0  0.00%  0.00%  0.00%   0 IDB Work
  36           0        78          0  0.00%  0.00%  0.00%   0 Logger
  37          85      6379         13  0.00%  0.00%  0.00%   0 TTY Background
  38         821      6420        127  0.00%  0.00%  0.00%   0 Per-Second Jobs
  39        3318       109      30440  0.00%  0.03%  0.00%   0 Per-minute Jobs
  40           0         7          0  0.00%  0.00%  0.00%   0 IF-MGR control p
  41           0        29          0  0.00%  0.00%  0.00%   0 IF-MGR event pro
  42           0         1          0  0.00%  0.00%  0.00%   0 Inode Table Dest
  43           8         3       2666  0.00%  0.00%  0.00%   0 IP Admission HA
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  44           0         1          0  0.00%  0.00%  0.00%   0 AggMgr Process
  45           0        32          0  0.00%  0.00%  0.00%   0 Transport Port A
  46           8      1860          4  0.00%  0.00%  0.00%   0 HC Counter Timer
  47           0         1          0  0.00%  0.00%  0.00%   0 SFF8472
  48           0        35          0  0.00%  0.00%  0.00%   0 EEM ED Identity
  49           0        69          0  0.00%  0.00%  0.00%   0 EEM ED MAT
  50          68       591        115  0.00%  0.00%  0.00%   0 EEM ED ND
  51          50        75        666  0.00%  0.00%  0.00%   0 USB Startup
  52          43    127004          0  0.00%  0.00%  0.00%   0 DownWhenLooped
  53           0         1          0  0.00%  0.00%  0.00%   0 HULC PBR Tcam Me
  54           0         1          0  0.00%  0.00%  0.00%   0 HULC ACL Tcam Me
  55           0         1          0  0.00%  0.00%  0.00%   0 Hulc Warm Upgrad
  56           0         1          0  0.00%  0.00%  0.00%   0 HRPC hdwl reques
  57           0         1          0  0.00%  0.00%  0.00%   0 HRPC lpip reques
  58           0         2          0  0.00%  0.00%  0.00%   0 HLPIP Sync Proce
  59           0         1          0  0.00%  0.00%  0.00%   0 HRPC Multi-FS Sy
  60           0         4          0  0.00%  0.00%  0.00%   0 HULC multifs pro
  61           0         1          0  0.00%  0.00%  0.00%   0 HRPC hnetwpol re
  62           0         1          0  0.00%  0.00%  0.00%   0 HRPC EnergyWise
  63           0         1          0  0.00%  0.00%  0.00%   0 HRPC actual powe
  64          24     25488          0  0.00%  0.00%  0.00%   0 HUSB Console
  65           0         1          0  0.00%  0.00%  0.00%   0 HRPC ipadm reque
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  66           0         2          0  0.00%  0.00%  0.00%   0 SM RBCP Monitor
  67           0         1          0  0.00%  0.00%  0.00%   0 HULC QM Tcam Mem
  68           0         9          0  0.00%  0.00%  0.00%   0 Net Input
  69          25      1286         19  0.00%  0.00%  0.00%   0 Compute load avg
  70           0         2          0  0.00%  0.00%  0.00%   0 X2 HAMM detect p
  71           0         1          0  0.00%  0.00%  0.00%   0 Madmax Process
  72           0         1          0  0.00%  0.00%  0.00%   0 HRPC asic-stats
  73        3095     21869        141  0.00%  0.05%  0.04%   0 RedEarth I2C dri
  74       35272     18721       1884  0.79%  0.65%  0.57%   0 RedEarth Tx Mana
  75        2091     10934        191  0.00%  0.02%  0.00%   0 RedEarth Rx Mana
  76           8      1286          6  0.00%  0.00%  0.00%   0 HULC Thermal Pro
  77           0         1          0  0.00%  0.00%  0.00%   0 HRPC hsm request
  78           0         8          0  0.00%  0.00%  0.00%   0 Stack Mgr
  79         101         8      12625  0.00%  0.00%  0.00%   0 Stack Mgr Notifi
  80          17      1668         10  0.00%  0.00%  0.00%   0 Adjust Regions
  81          45      6428          7  0.00%  0.00%  0.00%   0 hrpc -> response
  82           8      1305          6  0.00%  0.00%  0.00%   0 hrpc -> request
  83           0      1304          0  0.00%  0.00%  0.00%   0 hrpc <- response
  84           0         1          0  0.00%  0.00%  0.00%   0 HRPC hcomp reque
  85          35     31829          1  0.00%  0.00%  0.00%   0 yeti2_emac_proce
  86           0        11          0  0.00%  0.00%  0.00%   0 HULC Device Mana
  87           0         3          0  0.00%  0.00%  0.00%   0 HRPC hdm non blo
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
  88           0         2          0  0.00%  0.00%  0.00%   0 HRPC hdm blockin
  89           0      1286          0  0.00%  0.00%  0.00%   0 HIPC bkgrd proce
  90           0         1          0  0.00%  0.00%  0.00%   0 RTTYS Process
  91           0        46          0  0.00%  0.00%  0.00%   0 Hulc Port-Securi
  92           0         1          0  0.00%  0.00%  0.00%   0 HRPC hpsecure re
  93           0         1          0  0.00%  0.00%  0.00%   0 HRPC hfbm reques
  94           0        36          0  0.00%  0.00%  0.00%   0 HCMP sync proces
  95           0         1          0  0.00%  0.00%  0.00%   0 HRPC hlfm reques
  96         683    189674          3  0.00%  0.00%  0.00%   0 HLFM address lea
  97         261      6387         40  0.00%  0.00%  0.00%   0 HLFM aging proce
  98         323    190773          1  0.00%  0.00%  0.00%   0 HLFM address ret
  99           0         1          0  0.00%  0.00%  0.00%   0 HRPC hrcmd reque
 100          17         5       3400  0.00%  0.00%  0.00%   0 HRPC emac reques
 101           0         1          0  0.00%  0.00%  0.00%   0 HRPC hulc misc r
 102           0      2144          0  0.00%  0.00%  0.00%   0 HVLAN main bkgrd
 103           0         2          0  0.00%  0.00%  0.00%   0 HVLAN Mapped Vla
 104           0         2          0  0.00%  0.00%  0.00%   0 Vlan shutdown Pr
 105           0         3          0  0.00%  0.00%  0.00%   0 HRPC vlan reques
 106           0         2          0  0.00%  0.00%  0.00%   0 HULC VLAN REF Ba
 107           0       109          0  0.00%  0.00%  0.00%   0 hulc_xps_process
 108           0         1          0  0.00%  0.00%  0.00%   0 HRPC ilp request
 109           0         1          0  0.00%  0.00%  0.00%   0 HULC PM Vector P
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 110           0         1          0  0.00%  0.00%  0.00%   0 HPM Msg Retry Pr
 111           0         1          0  0.00%  0.00%  0.00%   0 CEF RP IPC Backg
 112       33067    243800        135  1.11%  0.59%  0.51%   0 hpm main process
 113           8        80        100  0.00%  0.00%  0.00%   0 HPM Stack Sync P
 114           0         1          0  0.00%  0.00%  0.00%   0 HRPC pm request
 115           0         3          0  0.00%  0.00%  0.00%   0 HPM if_num mappi
 116        2053      6387        321  0.31%  0.05%  0.01%   0 hpm counter proc
 117           0         1          0  0.00%  0.00%  0.00%   0 HRPC pm-counters
 118           0         5          0  0.00%  0.00%  0.00%   0 hpm vp events ca
 119           0         1          0  0.00%  0.00%  0.00%   0 HRPC hcmp reques
 120           0         5          0  0.00%  0.00%  0.00%   0 HCEF ADJ Refresh
 121           0         1          0  0.00%  0.00%  0.00%   0 HRPC hl3mm reque
 122           0         1          0  0.00%  0.00%  0.00%   0 hl3md_rpfq_thrl_
 123          16      4534          3  0.00%  0.00%  0.00%   0 hl3mm
 124           9      3212          2  0.00%  0.00%  0.00%   0 hl3mm_rp
 125           0         1          0  0.00%  0.00%  0.00%   0 HACL Queue Proce
 126           0         1          0  0.00%  0.00%  0.00%   0 HRPC acl request
 127           0        84          0  0.00%  0.00%  0.00%   0 HACL Acl Manager
 128           0         1          0  0.00%  0.00%  0.00%   0 HRPC aim request
 129           0         1          0  0.00%  0.00%  0.00%   0 HRPC backup inte
 130        2049       579       3538  0.47%  0.16%  0.20%   1 SSH Process
 131           0         1          0  0.00%  0.00%  0.00%   0 HRPC cdp request
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 132           0         1          0  0.00%  0.00%  0.00%   0 HULC CISP Proces
 133           0         1          0  0.00%  0.00%  0.00%   0 HRPC dot1x reque
 134           0         1          0  0.00%  0.00%  0.00%   0 Dot1X Msg Retry
 135           0         3          0  0.00%  0.00%  0.00%   0 HULC DOT1X Proce
 136           0         1          0  0.00%  0.00%  0.00%   0 HRPC foxhound re
 137           0         2          0  0.00%  0.00%  0.00%   0 Hulc Foxhound Pr
 138           0         1          0  0.00%  0.00%  0.00%   0 HRPC lldp reques
 139           0         2          0  0.00%  0.00%  0.00%   0 MACsec Process
 140           0         1          0  0.00%  0.00%  0.00%   0 HRPC macsec requ
 141           0         1          0  0.00%  0.00%  0.00%   0 HRPC system mtu
 142           0         1          0  0.00%  0.00%  0.00%   0 HRPC sdm request
 143           0         1          0  0.00%  0.00%  0.00%   0 SMI MSG Retry Pr
 144           0         1          0  0.00%  0.00%  0.00%   0 HRPC Smart Insta
 145         119     31862          3  0.00%  0.00%  0.00%   0 Hulc Storm Contr
 146           0         2          0  0.00%  0.00%  0.00%   0 HSTP Sync Proces
 147           0         1          0  0.00%  0.00%  0.00%   0 HRPC stp_cli req
 148           0         1          0  0.00%  0.00%  0.00%   0 HRPC stp_state_s
 149           0         2          0  0.00%  0.00%  0.00%   0 S/W Bridge Proce
 150           0         1          0  0.00%  0.00%  0.00%   0 HRPC hudld reque
 151           0         1          0  0.00%  0.00%  0.00%   0 HRPC vqpc reques
 152           0         1          0  0.00%  0.00%  0.00%   0 HRPC iec_load_ba
 153          16      6393          2  0.15%  0.01%  0.00%   0 IEC Load balance
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 154           0         1          0  0.00%  0.00%  0.00%   0 HRPC l2pt qnq rp
 155           0         1          0  0.00%  0.00%  0.00%   0 HRPC hled reques
 156        4699    152093         30  0.15%  0.10%  0.08%   0 Hulc LED Process
 157          74      4717         15  0.00%  0.00%  0.00%   0 HL3U bkgrd proce
 158           0         1          0  0.00%  0.00%  0.00%   0 HRPC hl3u reques
 159           0      1479          0  0.00%  0.00%  0.00%   0 HL3U PBR bkgrd p
 160           0        54          0  0.00%  0.00%  0.00%   0 HL3U PBR n-h res
 161           0         1          0  0.00%  0.00%  0.00%   0 HRPC obfl reques
 162        1731        38      45552  0.00%  0.00%  0.00%   0 SpanTree Helper
 163           0         1          0  0.00%  0.00%  0.00%   0 HRPC dtp request
 164           0         1          0  0.00%  0.00%  0.00%   0 HRPC show_forwar
 165           0         1          0  0.00%  0.00%  0.00%   0 HRPC snmp reques
 166           0         1          0  0.00%  0.00%  0.00%   0 HULC SNMP Proces
 167        2484      1303       1906  0.00%  0.02%  0.00%   0 HQM Stack Proces
 168        1320      2587        510  0.15%  0.01%  0.00%   0 HRPC qos request
 169           0         1          0  0.00%  0.00%  0.00%   0 HRPC span reques
 170           0         1          0  0.00%  0.00%  0.00%   0 HRPC system post
 171           0         1          0  0.00%  0.00%  0.00%   0 Hulc Reload Mana
 172           0         1          0  0.00%  0.00%  0.00%   0 HRPC hrcli-event
 173           0       113          0  0.00%  0.00%  0.00%   0 DHCPD Database
 174           0         2          0  0.00%  0.00%  0.00%   0 image mgr
 175           0         1          0  0.00%  0.00%  0.00%   0 HRFS OIR Proc
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 176         159        10      15900  0.00%  0.00%  0.00%   0 HL2MCM
 177         175        10      17500  0.00%  0.00%  0.00%   0 HL2MCM
 178           0        10          0  0.00%  0.00%  0.00%   0 AAA Server
 179           0         1          0  0.00%  0.00%  0.00%   0 AAA ACCT Proc
 180           0         1          0  0.00%  0.00%  0.00%   0 ACCT Periodic Pr
 181           0         1          0  0.00%  0.00%  0.00%   0 AAA System Acct
 182           0         1          0  0.00%  0.00%  0.00%   0 AUTH POLICY Fram
 183           8        23        347  0.00%  0.00%  0.00%   0 Auth Manager
 184           0         1          0  0.00%  0.00%  0.00%   0 Auth-proxy AAA B
 185           0        22          0  0.00%  0.00%  0.00%   0 IP Admin SM Proc
 186         686      1605        427  0.00%  0.00%  0.00%   0 CDP Protocol
 187           0       429          0  0.00%  0.00%  0.00%   0 MDFS LC Download
 188           0         2          0  0.00%  0.00%  0.00%   0 ENABLE AAA
 189           0         1          0  0.00%  0.00%  0.00%   0 CMD HANDLER
 190           0         2          0  0.00%  0.00%  0.00%   0 AAA Dictionary R
 191           0        16          0  0.00%  0.00%  0.00%   0 SXP CORE
 192           0        54          0  0.00%  0.00%  0.00%   0 DHCP Snooping
 193           0         2          0  0.00%  0.00%  0.00%   0 Dot1x Mgr Proces
 194           0         1          0  0.00%  0.00%  0.00%   0 EAP Framework
 195           0         1          0  0.00%  0.00%  0.00%   0 EAP Test
 196           0         2          0  0.00%  0.00%  0.00%   0 EAPoUDP Process
 197           0         3          0  0.00%  0.00%  0.00%   0 CEF switching ba
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 198         497      1586        313  0.31%  0.04%  0.00%   0 IP Input
 199           0         1          0  0.00%  0.00%  0.00%   0 ICMP event handl
 200           0     12414          0  0.00%  0.00%  0.00%   0 IP ARP Track
 201         260      6398         40  0.00%  0.00%  0.00%   0 fnvRootHubPortSt
 202           0         1          0  0.00%  0.00%  0.00%   0 tHUB
 203          42     63695          0  0.00%  0.00%  0.00%   0 MDFS MFIB Proces
 204           0         5          0  0.00%  0.00%  0.00%   0 ADJ resolve proc
 205           0         2          0  0.00%  0.00%  0.00%   0 ADJ NSF process
 206           0         1          0  0.00%  0.00%  0.00%   0 IPv6 ping proces
 207           0         2          0  0.00%  0.00%  0.00%   0 KRB5 AAA
 208           0         1          0  0.00%  0.00%  0.00%   0 MAB Framework
 209           0         2          0  0.00%  0.00%  0.00%   0 MKA
 210         512        23      22260  0.00%  0.00%  0.00%   0 OBFL TEMP obfl0
 211           0         1          0  0.00%  0.00%  0.00%   0 SMI Director DB
 212           0         1          0  0.00%  0.00%  0.00%   0 SMI CDP Update H
 213           0         1          0  0.00%  0.00%  0.00%   0 SMI Backup Proce
 214           0         2          0  0.00%  0.00%  0.00%   0 SMI IBC server p
 215           0         1          0  0.00%  0.00%  0.00%   0 SMI IBC client p
 216           0         2          0  0.00%  0.00%  0.00%   0 SMI IBC Download
 217        2166     11564        187  0.00%  0.07%  0.02%   0 Spanning Tree
 218           0       121          0  0.00%  0.00%  0.00%   0 Spanning Tree St
 219           0         2          0  0.00%  0.00%  0.00%   0 CDP Forward Proc
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 220          33        39        846  0.00%  0.00%  0.00%   0 802.1x switch
 221           0       109          0  0.00%  0.00%  0.00%   0 802.1x MDA Aging
 222           0         1          0  0.00%  0.00%  0.00%   0 802.1x Webauth F
 223        1092      1890        577  0.00%  0.00%  0.00%   0 DTP Protocol
 224           0         1          0  0.00%  0.00%  0.00%   0 HRPC dai request
 225           0         1          0  0.00%  0.00%  0.00%   0 HULC DAI Process
 226           0         1          0  0.00%  0.00%  0.00%   0 HRPC power down
 227           0         1          0  0.00%  0.00%  0.00%   0 HRPC ip device t
 228           0         1          0  0.00%  0.00%  0.00%   0 HRPC ip source g
 229           0         1          0  0.00%  0.00%  0.00%   0 HULC IP Source g
 230        1409      6389        220  0.31%  0.08%  0.03%   0 PI MATM Aging Pr
 231         110      8060         13  0.00%  0.00%  0.00%   0 UDLD
 232           0       215          0  0.00%  0.00%  0.00%   0 Port-Security
 233           0         2          0  0.00%  0.00%  0.00%   0 Switch Backup In
 234           0         2          0  0.00%  0.00%  0.00%   0 IP Host Track Pr
 235           0         1          0  0.00%  0.00%  0.00%   0 Link State Group
 236           0       108          0  0.00%  0.00%  0.00%   0 MMN bkgrd proces
 237           0       645          0  0.00%  0.00%  0.00%   0 Ethchnl
 238        2022       127      15921  0.00%  0.10%  0.02%   0 VMATM Callback
 239           8       135         59  0.00%  0.00%  0.00%   0 CEF background p
 240           0         1          0  0.00%  0.00%  0.00%   0 IP IRDP
 241           0         1          0  0.00%  0.00%  0.00%   0 CEF RF HULC Conv
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 242           0         3          0  0.00%  0.00%  0.00%   0 XDR mcast
 243          16       644         24  0.00%  0.00%  0.00%   0 IP ACL XDR LC Ba
 244           0         1          0  0.00%  0.00%  0.00%   0 IPC LC Message H
 245           0         1          0  0.00%  0.00%  0.00%   0 XDR RP Ping Back
 246           0        54          0  0.00%  0.00%  0.00%   0 XDR RP backgroun
 247           0         1          0  0.00%  0.00%  0.00%   0 XDR RP Test Back
 248           0         3          0  0.00%  0.00%  0.00%   0 MDFS LC Process
 249           0         1          0  0.00%  0.00%  0.00%   0 Critical Auth
 250           0         2          0  0.00%  0.00%  0.00%   0 LINE AAA
 251           9        67        134  0.00%  0.00%  0.00%   0 IP RIB Update
 252          34       742         45  0.00%  0.00%  0.00%   0 TCP Timer
 253           0        26          0  0.00%  0.00%  0.00%   0 TCP Protocols
 254           0      6389          0  0.00%  0.00%  0.00%   0 Socket Timers
 255          17        26        653  0.00%  0.00%  0.00%   0 HTTP CORE
 256           0        83          0  0.00%  0.00%  0.00%   0 Cluster L2
 257           0       644          0  0.00%  0.00%  0.00%   0 Cluster RARP
 258         179      1310        136  0.00%  0.00%  0.00%   0 Cluster Base
 259         450     12783         35  0.00%  0.01%  0.00%   0 DHCPD Receive
 260           0         2          0  0.00%  0.00%  0.00%   0 Dot1x Supplicant
 261           0         2          0  0.00%  0.00%  0.00%   0 Dot1x Supplicant
 262           0         2          0  0.00%  0.00%  0.00%   0 Dot1x Supplicant
 263           0         1          0  0.00%  0.00%  0.00%   0 RARP Input
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 264           0         1          0  0.00%  0.00%  0.00%   0 HRPC dhcp snoopi
 265           0         4          0  0.00%  0.00%  0.00%   0 HULC DHCP Snoopi
 266           0       323          0  0.00%  0.00%  0.00%   0 HULC stack power
 267           0         1          0  0.00%  0.00%  0.00%   0 HRPC stack power
 268         925        39      23717  0.00%  0.00%  0.00%   0 IGMPSN L2MCM
 269         263      1852        142  0.00%  0.00%  0.00%   0 IGMPSN MRD
 270         576      3811        151  0.00%  0.02%  0.00%   0 IGMPSN
 271           0         1          0  0.00%  0.00%  0.00%   0 IGMPQR
 272           0         3          0  0.00%  0.00%  0.00%   0 L2TRACE SERVER
 273         829        38      21815  0.00%  0.00%  0.00%   0 MLDSN L2MCM
 274           0         1          0  0.00%  0.00%  0.00%   0 MRD
 275           0         1          0  0.00%  0.00%  0.00%   0 MLD_SNOOP
 276           0         1          0  0.00%  0.00%  0.00%   0 HRPC hl2mcm igmp
 277         138     64041          2  0.00%  0.00%  0.00%   0 MDFS RP process
 278           0         1          0  0.00%  0.00%  0.00%   0 HRPC hl2mcm mlds
 279          51       262        194  0.00%  0.00%  0.00%   0 LOCAL AAA
 280           0         2          0  0.00%  0.00%  0.00%   0 EPM MAIN PROCESS
 281         242        16      15125  0.00%  0.00%  0.00%   0 OBFL UPTIME obfl
 282           0         2          0  0.00%  0.00%  0.00%   0 TPLUS
 283           0         1          0  0.00%  0.00%  0.00%   0 Connection Mgr
 284          16        12       1333  0.00%  0.00%  0.00%   0 crypto engine pr
 285          26         4       6500  0.00%  0.00%  0.00%   0 Crypto CA
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 286           0         1          0  0.00%  0.00%  0.00%   0 Crypto PKI-CRL
 287           0         1          0  0.00%  0.00%  0.00%   0 Crypto SSL
 288           0         1          0  0.00%  0.00%  0.00%   0 encrypt proc
 289           0         1          0  0.00%  0.00%  0.00%   0 HRPC x_setup req
 290           0         1          0  0.00%  0.00%  0.00%   0 Licensing MIB pr
 291           0        91          0  0.00%  0.00%  0.00%   0 VTP Trap Process
 292           0         2          0  0.00%  0.00%  0.00%   0 AAA SEND STOP EV
 293           0         2          0  0.00%  0.00%  0.00%   0 DHCP Security He
 294           0         2          0  0.00%  0.00%  0.00%   0 EEM ED Routing
 295          17        58        293  0.00%  0.00%  0.00%   0 EEM ED Syslog
 296          66        20       3300  0.00%  0.00%  0.00%   0 Syslog Traps
 297          92         3      30666  0.00%  0.00%  0.00%   0 OBFL MSG obfl0
 298           0         2          0  0.00%  0.00%  0.00%   0 VTPMIB EDIT BUFF
 299           0         1          0  0.00%  0.00%  0.00%   0 HCD Process
 300           0         1          0  0.00%  0.00%  0.00%   0 HRPC cable diagn
 301           0         2          0  0.00%  0.00%  0.00%   0 DiagCard1/-1
 302          41      7911          5  0.00%  0.00%  0.00%   0 PM Callback
 303         335        86       3895  0.00%  0.00%  0.00%   0 VLAN Manager
 304           9         1       9000  0.00%  0.00%  0.00%   0 LICENSE AGENT
 305           0       516          0  0.00%  0.00%  0.00%   0 dhcp snooping sw
 306         109        10      10900  0.00%  0.00%  0.00%   0 OBFL ENV obfl0
 307          17        53        320  0.00%  0.00%  0.00%   0 EEM Server
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 308           0         2          0  0.00%  0.00%  0.00%   0 EEM Policy Direc
 309        2525       112      22544  0.15%  0.01%  0.00%   0 OBFL VOLT obfl0
 310           0         3          0  0.00%  0.00%  0.00%   0 EEM ED CLI
 311           0         3          0  0.00%  0.00%  0.00%   0 EEM ED Counter
 312           0         3          0  0.00%  0.00%  0.00%   0 EEM ED Interface
 313           0         3          0  0.00%  0.00%  0.00%   0 EEM ED IOSWD
 314           0         3          0  0.00%  0.00%  0.00%   0 EEM ED Ipsla
 315           0         3          0  0.00%  0.00%  0.00%   0 EEM ED None
 316           0         3          0  0.00%  0.00%  0.00%   0 EEM ED OIR
 317           0         5          0  0.00%  0.00%  0.00%   0 SSH Event handle
 318           0         3          0  0.00%  0.00%  0.00%   0 EEM ED SNMP
 319           0         3          0  0.00%  0.00%  0.00%   0 EEM ED SNMP Obje
 320           0         2          0  0.00%  0.00%  0.00%   0 EEM ED SNMP Noti
 321          17       186         91  0.00%  0.00%  0.00%   0 EEM ED Timer
 322           0        41          0  0.00%  0.00%  0.00%   0 Syslog
 323           0         3          0  0.00%  0.00%  0.00%   0 RBM CORE
 324           0         2          0  0.00%  0.00%  0.00%   0 STP FAST TRANSIT
 325           0         2          0  0.00%  0.00%  0.00%   0 CSRT RAPID TRANS
 326         175      9943         17  0.00%  0.00%  0.00%   0 CEF: IPv4 proces
 327           0         4          0  0.00%  0.00%  0.00%   0 ADJ background
 328          33       164        201  0.00%  0.00%  0.00%   0 IP Background
 329         802       409       1960  0.00%  0.00%  0.00%   0 OBFL I/O Buffer
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process
 330         286      1238        231  0.00%  0.00%  0.00%   0 LACP Protocol
 331           0         3          0  0.00%  0.00%  0.00%   0 SNMP Timers
 332           0       157          0  0.00%  0.00%  0.00%   0 IP SNMP
 333           0         1          0  0.00%  0.00%  0.00%   0 PDU DISPATCHER
 334           0         1          0  0.00%  0.00%  0.00%   0 SNMP ENGINE
 335           0         2          0  0.00%  0.00%  0.00%   0 IP SNMPV6
 336           0         1          0  0.00%  0.00%  0.00%   0 SNMP ConfCopyPro
 337         627       158       3968  0.00%  0.00%  0.00%   0 SNMP Traps
 338        2110       109      19357  0.00%  0.00%  0.00%   0 crypto sw pk pro
 339         406        63       6444  0.00%  0.02%  0.00%   0 SpanTree Flush
 340           0         4          0  0.00%  0.00%  0.00%   0 hulc cfg mgr mas
 341        4647        37     125594  0.00%  0.00%  0.09%   0 hulc running con
 342           0         4          0  0.00%  0.00%  0.00%   0 Collection proce

The utilisation figures are not that bad so I'm not convinced that is the problem at the moment.

If you are other 3750Xs are not displaying the same symptoms it may be worth upgrading to the same IOS. It's always a good idea to have the same IOS for the same model if you can do that.

Jon

Thanks Jon

I will upgrade the IOS tomorrow and see how I get on

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