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[sajin9231]

Hi

I use a C3750 as my core switch where I have configured all the vlans for my office. We have a 100 Mbps link for Internet but I notice that the speed is only nearly half from user side. The 100 Mbps link is connected to a firewall to which the switch is connected. In order to make sure this is not an ISP issue, I connected a laptop directly to the firewall and got a speed more than 90 Mbps. So it's definitely not an ISP issue. Attached is the configuration of my switch. I'm not able to find out where the configuration is wrong. Any assistance would be appreciated.

[balaji.bandi]

At this moment i can only think of couple of things to test.

1. FW to Switch what is the negotiation speed ( post show interface gi 1/0/23)

2. enable ip cef

3. use any free port configure simple config like below

default the interrface

switch mode access vlan XX

no shutdown

4. confgure the PC with the IP of that VLAN and gateway ( configure DNS Setting what is the best usable for your stup)

   - if the DHCP configured you get DHCP IP automatically based on the config.

5. make sure you have DNS resolution correctly resolved, test with nslookup from PC

Test and advise, and post the output of all, try http://fast.com and post the results of PC and otehr config.

[sajin9231]

Hi Balaji,

Thanks for the reply.

OMAHO_LAN_CORESW1#show interfaces GigabitEthernet1/0/23
GigabitEthernet1/0/23 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is fc5b.3959.6ec1 (bia fc5b.3959.6ec1)
  Description: UPLINK to FIREWALL Port-3
  Internet address is 192.168.50.2/24
  MTU 7500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 8/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:06:06, output 00:00:05, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 3493000 bits/sec, 375 packets/sec
  5 minute output rate 700000 bits/sec, 192 packets/sec
     3019992 packets input, 3134383770 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     2392671 packets output, 1235527208 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

ip cef was disabled due to ARP resolution errors that kept showing up in the logs. Disabling cef was the recommendation I found in forums. I will test what you have suggested and reply soon.

[balaji.bandi]

MTU 7500 bytes, BW 100000 Kbit/sec, DLY 100 usec,  - change to MTU 1500 and test

config t

!

 interfaces GigabitEthernet1/0/23

mtu 1500

! 

end

15.2(4)E6 have bug

no ip cef optimize neighbor resolution (IP CEF error have work around ) - make sense.

[sajin9231]

Hi,

The command is not accepted.

The mtu was 1500 before, I increased the size to accept jumbo frames hoping that would make some difference. Do you recommend to change it back to 1500?

Also the system mtu routing is 1500..This applies to L3 ports right?

[balaji.bandi]

You should not change MTU to higher level, until you have other end can able to match that MTU

setup back to MTU 1500 or default interface and configure back as suggested.

have done the testing whcih i was suggested in the last post ? what was the outcome ?

[sajin9231]

Hi,

I have changed the MTU back to 1500.

I tested by connecting a laptop directly to the switch, configured it to a vlan. Got the IP via DHCP. There was no change in speed.

I did the configuration as suggested by Mr. Paul. Attaching the new configuration of the switch.

[sajin9231]

Hi Balaji,

I am attaching the configuration taken via CNA. Please let me know if you find anything unusual.

[Georg Pauwen]

Hello,

post the output of:

show ver

and 

show interfaces GigabitEthernet1/0/23

[sajin9231]

OMAHO_LAN_CORESW1#sh ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.2(4)E6, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2018 by Cisco Systems, Inc.
Compiled Thu 05-Apr-18 02:22 by prod_rel_team

ROM: Bootstrap program is C3750E boot loader
BOOTLDR: C3750E Boot Loader (C3750X-HBOOT-M) Version 12.2(58r)SE1, RELEASE SOFTWARE (fc1)

OMAHO_LAN_CORESW1 uptime is 3 hours, 14 minutes
System returned to ROM by power-on
System restarted at 10:29:43 UTC Sat Dec 15 2018
System image file is "flash:/c3750e-universalk9-mz.152-4.E6/c3750e-universalk9-mz.152-4.E6.bin"
Last reload reason: Reload command



This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

License Level: ipservices
License Type: Permanent
Next reload license Level: ipservices

cisco WS-C3750X-24P (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Processor board ID FDO1834Z0BU
Last reset from power-on
11 Virtual Ethernet interfaces
1 FastEthernet interface
56 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address       : FC:5B:39:59:6E:80
Motherboard assembly number     : 73-12551-11
Motherboard serial number       : FDO18340CKD
Model revision number           : A0
Motherboard revision number     : B0
Model number                    : WS-C3750X-24P-E
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO18331PNN
System serial number            : FDO1834Z0BU
Top Assembly Part Number        : 800-31325-09
Top Assembly Revision Number    : E0
Version ID                      : V06
CLEI Code Number                : CMMPP00DRA
Hardware Board Revision Number  : 0x05


Switch Ports Model                     SW Version            SW Image
------ ----- -----                     ----------            ----------
*    1 30    WS-C3750X-24P             15.2(4)E6             C3750E-UNIVERSALK9-M
     2 30    WS-C3750X-24P             15.2(4)E6             C3750E-UNIVERSALK9-M


Switch 02
---------
Switch Uptime                   : 3 hours, 14 minutes
Base ethernet MAC Address       : BC:16:F5:C4:EA:00
Motherboard assembly number     : 73-12551-11
Motherboard serial number       : FDO18340CKP
Model revision number           : A0
Motherboard revision number     : B0
Model number                    : WS-C3750X-24P-E
Daughterboard assembly number   : 800-32727-03
Daughterboard serial number     : FDO18331PXX
System serial number            : FDO1834Z0GQ
Top assembly part number        : 800-31325-09
Top assembly revision number    : E0
Version ID                      : V06
CLEI Code Number                : CMMPP00DRA
License Level                   : ipservices
License Type                    : Permanent
Next reboot licensing Level     : ipservices


Configuration register is 0xF

OMAHO_LAN_CORESW1#show interfaces GigabitEthernet1/0/23
GigabitEthernet1/0/23 is up, line protocol is up (connected)
  Hardware is Gigabit Ethernet, address is fc5b.3959.6ec1 (bia fc5b.3959.6ec1)
  Description: UPLINK to FIREWALL Port-3
  Internet address is 192.168.50.2/24
  MTU 7500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 8/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:06:06, output 00:00:05, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 3493000 bits/sec, 375 packets/sec
  5 minute output rate 700000 bits/sec, 192 packets/sec
     3019992 packets input, 3134383770 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     2392671 packets output, 1235527208 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

[Georg Pauwen]

Hello,

the MTU size of 7500 looks odd. Can you change that to 1500 in interface configuration mode (mtu 1500) ?

GigabitEthernet1/0/23 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is fc5b.3959.6ec1 (bia fc5b.3959.6ec1)
Description: UPLINK to FIREWALL Port-3
Internet address is 192.168.50.2/24
MTU 7500 bytes, BW 100000 Kbit/sec, DLY 100 usec,

[paul driver]

Hello

when you plug in the pc I assumed it was set to auto negotiate its speed/duplex settings but on the switchport it’s looks like it hardcoded?

Conf t

default interface gig1/0/23

int gig1/0/23

shut

no switchport 

IP address xxxxxx

no shut

can you also post config of switch 

[sajin9231]

Hi Paul,

It is set to auto negotiate. On the other end of G1/0/23 is a Fortigate Firewall 80C. It has only got Fast Ethernet port that supports 100 Mbps.

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2018.12.15 10:24:44 =~=~=~=~=~=~=~=~=~=~=~=
sh run
Building configuration...

Current configuration : 11922 bytes
!
! Last configuration change at 10:15:32 UTC Sat Dec 15 2018 by omaadmin
!
version 15.2
no service pad
service timestamps debug datetime msec
service timestamps log datetime localtime show-timezone
service password-encryption
!
hostname OMAHO_LAN_CORESW1
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 $1$EdJI$eisk4C.uhyn18.ABXPe6A0
!
username omaadmin privilege 15 secret 5 $1$TOBp$TFAKuEco/nNFSNqtzxqlz/
no aaa new-model
clock timezone UTC 4 0
switch 1 provision ws-c3750x-24p
switch 2 provision ws-c3750x-24p
system mtu routing 1500
!
!
!
!
ip routing
no ip cef optimize neighbor resolution
!
ip dhcp excluded-address 10.0.33.1 10.0.33.10
ip dhcp excluded-address 10.0.31.1 10.0.31.10
ip dhcp excluded-address 10.0.32.1 10.0.32.10
ip dhcp excluded-address 10.0.34.1 10.0.34.10
ip dhcp excluded-address 10.0.35.1 10.0.35.10
ip dhcp excluded-address 10.0.36.1 10.0.36.10
ip dhcp excluded-address 10.100.0.1 10.100.0.10
!
ip dhcp pool vlan36
 network 10.0.36.0 255.255.255.0
 default-router 10.0.36.1
 --More--          dns-server 213.42.20.20 195.229.241.222
!
ip dhcp pool vlan33
 network 10.0.33.0 255.255.255.0
 default-router 10.0.33.1
 dns-server 213.42.20.20 195.229.241.222
!
ip dhcp pool vlan31
 network 10.0.31.0 255.255.255.0
 default-router 10.0.31.1
 dns-server 213.42.20.20
!
ip dhcp pool vlan32
 network 10.0.32.0 255.255.255.0
 default-router 10.0.32.1
 dns-server 213.42.20.20
!
ip dhcp pool vlan34
 network 10.0.34.0 255.255.255.0
 default-router 10.0.34.1
 dns-server 213.42.20.20 195.229.241.222
!
ip dhcp pool vlan35
 network 10.0.35.0 255.255.255.0
 default-router 10.0.35.1
 dns-server 213.42.20.20 195.229.241.222
!
ip dhcp pool vlan50
 network 172.20.50.0 255.255.255.0
 default-router 172.20.50.1
!
ip dhcp pool vlan30
 network 10.0.30.0 255.255.255.0
 default-router 10.0.30.1
 dns-server 213.42.20.20
!
ip dhcp pool vlan100
 network 10.100.0.0 255.255.255.0
 default-router 10.100.0.1
 dns-server 213.42.20.20
!
!
!
!
!
!
!
!
!
!
crypto pki trustpoint TP-self-signed-962162304
 --More--          enrollment selfsigned
 subject-name cn=IOS-Self-Signed-Certificate-962162304
 revocation-check none
 rsakeypair TP-self-signed-962162304
!
!
crypto pki certificate chain TP-self-signed-962162304
 certificate self-signed 01
  30820247 308201B0 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  30312E30 2C060355 04031325 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 39363231 36323330 34301E17 0D393330 33303130 30303131
  325A170D 32303031 30313030 30303030 5A303031 2E302C06 03550403 1325494F
  532D5365 6C662D53 69676E65 642D4365 72746966 69636174 652D3936 32313632
  33303430 819F300D 06092A86 4886F70D 01010105 0003818D 00308189 02818100
  BDB07E6A 4824BEFD 11BCCE58 93C84D9D E828ADBA CC80A00B A8F7E3A7 08902146
  EADF7783 975FDF31 094B6C48 4A25967E 0860220D DFF1D86B 0FC99E0A B64E4CD8
  88DB4E33 6C4B0508 02018CFF EED8E016 7FD67877 FC0C3A6F E90C320C 566D5845
  88B3360A B091F077 5DEF2652 37CD155D 0EA07A26 BE82236C 30851496 FE136C63
  02030100 01A37130 6F300F06 03551D13 0101FF04 05300301 01FF301C 0603551D
  11041530 1382114F 4D41484F 5F4C414E 5F434F52 45535731 301F0603 551D2304
  18301680 14F90C6C 759DA39F 96419C77 E1493937 8B347C41 A5301D06 03551D0E
  04160414 F90C6C75 9DA39F96 419C77E1 4939378B 347C41A5 300D0609 2A864886
  F70D0101 04050003 8181009F 10494876 3BDCA4BB 60F59AB5 5B13020E A4613FA6
  5AA09227 DAA7A4C7 69143642 E58A0659 DB2311C7 28A02DDC 49EB6C5B 4C4EFAD8
  3D92B792 3FB3590C 999B15D0 42A67D7F CEDFF80F 09003029 F70BE3D4 DC73F9BD
  1A1FD361 5B90E69F 0427F6FB C6F0967D 331F24C7 8AF1F423 B7EDD63C 2737DCE5
  9160CFA5 0D30ABF8 8E75E7
      quit
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
!
 --More--         !
!
!
!
!
!
!
!
!
interface FastEthernet0
 no ip address
 no ip route-cache
!
interface GigabitEthernet1/0/1
 description GROUND-FLOOR DATA UPLINK-1
 switchport access vlan 30
 switchport mode access
!
interface GigabitEthernet1/0/2
 description MEZZ-FLOOR DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 30
 switchport mode trunk
!
interface GigabitEthernet1/0/3
 description MEZZ-FLOOR DATA UPLINK-3
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport mode access
!
interface GigabitEthernet1/0/4
 description FLOOR-1 DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 31
 switchport mode trunk
!
interface GigabitEthernet1/0/5
 switchport access vlan 35
 switchport mode access
!
interface GigabitEthernet1/0/6
 shutdown
!
 --More--         interface GigabitEthernet1/0/7
 shutdown
!
interface GigabitEthernet1/0/8
 shutdown
!
interface GigabitEthernet1/0/9
 shutdown
!
interface GigabitEthernet1/0/10
 shutdown
!
interface GigabitEthernet1/0/11
 shutdown
!
interface GigabitEthernet1/0/12
 shutdown
!
interface GigabitEthernet1/0/13
 description FLOOR-3 DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 33
 switchport mode trunk
!
interface GigabitEthernet1/0/14
 description FLOOR-3 DATA UPLINK-2
 shutdown
!
interface GigabitEthernet1/0/15
 description FLOOR-3 DATA UPLINK-3
 shutdown
!
interface GigabitEthernet1/0/16
 description FLOOR-4 DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 34
 switchport mode trunk
!
interface GigabitEthernet1/0/17
 description FLOOR-4 DATA UPLINK-2
 shutdown
!
interface GigabitEthernet1/0/18
 --More--          description FLOOR-6 DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 36
 switchport mode trunk
!
interface GigabitEthernet1/0/19
 description FLOOR-10 DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 36
 switchport mode trunk
!
interface GigabitEthernet1/0/20
 description FLOOR-5 DATA UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 35
 switchport mode trunk
!
interface GigabitEthernet1/0/21
 shutdown
!
interface GigabitEthernet1/0/22
 shutdown
!
interface GigabitEthernet1/0/23
 description UPLINK to FIREWALL Port-3
 no switchport
 ip address 192.168.50.2 255.255.255.0
!
interface GigabitEthernet1/0/24
 description UPLINK to DVR
 switchport access vlan 35
 switchport mode access
!
interface GigabitEthernet1/1/1
 shutdown
!
interface GigabitEthernet1/1/2
 shutdown
!
interface GigabitEthernet1/1/3
 shutdown
!
interface GigabitEthernet1/1/4
 --More--          shutdown
!
interface TenGigabitEthernet1/1/1
!
interface TenGigabitEthernet1/1/2
!
interface GigabitEthernet2/0/1
 description GROUND FLOOR VOICE UPLINK-1
 switchport access vlan 30
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 100
 switchport mode trunk
 mls qos trust cos
!
interface GigabitEthernet2/0/2
 description MEZZ. FLOOR VOICE UPLINK-1
 switchport access vlan 100
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport voice vlan 100
 mls qos trust cos
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/3
 description FLOOR-1 VOICE UPLINK-1
 switchport trunk encapsulation dot1q
 switchport mode access
 switchport voice vlan 100
 mls qos trust cos
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/4
 description FLOOR-6 VOICE UPLINK-1
 switchport trunk encapsulation dot1q
 switchport trunk native vlan 100
 switchport mode trunk
 mls qos trust cos
!
interface GigabitEthernet2/0/5
 shutdown
!
interface GigabitEthernet2/0/6
 shutdown
 --More--         !
interface GigabitEthernet2/0/7
 shutdown
!
interface GigabitEthernet2/0/8
 shutdown
!
interface GigabitEthernet2/0/9
 shutdown
!
interface GigabitEthernet2/0/10
 shutdown
!
interface GigabitEthernet2/0/11
 shutdown
!
interface GigabitEthernet2/0/12
 shutdown
!
interface GigabitEthernet2/0/13
 description FLOOR-3 VOICE UPLINK-1
 switchport access vlan 100
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport voice vlan 100
 mls qos trust cos
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/14
 description FLOOR-3 VOICE UPLINK-2
 shutdown
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/15
 description FLOOR-3 VOICE UPLINK-3
 shutdown
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/16
 description FLOOR-4 VOICE UPLINK-1
 switchport access vlan 100
 switchport trunk encapsulation dot1q
 switchport mode access
 --More--          switchport voice vlan 100
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/17
 description FLOOR-4 VOICE UPLINK-2
 shutdown
!
interface GigabitEthernet2/0/18
 description FLOOR-4 VOICE UPLINK-3
 shutdown
!
interface GigabitEthernet2/0/19
 description FLOOR-10 VOICE UPLINK-1
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport voice vlan 100
 mls qos trust cos
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/20
 description FLOOR-5 VOICE UPLINK-1
 switchport trunk encapsulation dot1q
 switchport mode trunk
 switchport voice vlan 100
 mls qos trust cos
 spanning-tree portfast edge
!
interface GigabitEthernet2/0/21
 description FLOOR-10 VOICE UPLINK-2
 shutdown
!
interface GigabitEthernet2/0/22
 description FLOOR-10 VOICE UPLINK-3
 shutdown
!
interface GigabitEthernet2/0/23
 shutdown
!
interface GigabitEthernet2/0/24
 description DC VOICE-SERVER
 switchport access vlan 100
 switchport mode access
!
 --More--         interface GigabitEthernet2/1/1
 shutdown
!
interface GigabitEthernet2/1/2
 shutdown
!
interface GigabitEthernet2/1/3
 shutdown
!
interface GigabitEthernet2/1/4
 shutdown
!
interface TenGigabitEthernet2/1/1
!
interface TenGigabitEthernet2/1/2
!
interface Vlan1
 ip address dhcp
!
interface Vlan30
 ip address 10.0.30.1 255.255.255.0
!
interface Vlan31
 ip address 10.0.31.1 255.255.255.0
!
interface Vlan32
 ip address 10.0.32.1 255.255.255.0
!
interface Vlan33
 ip address 10.0.33.1 255.255.255.0
!
interface Vlan34
 ip address 10.0.34.1 255.255.255.0
!
interface Vlan35
 ip address 10.0.35.1 255.255.255.0
!
interface Vlan36
 ip address 10.0.36.1 255.255.255.0
!
interface Vlan40
 ip address 10.0.40.1 255.255.255.0
!
 --More--         interface Vlan50
 no ip address
!
interface Vlan100
 ip address 10.100.0.1 255.255.255.0
!
ip forward-protocol nd
!
ip http server
ip http authentication local
ip http secure-server
!
ip route 0.0.0.0 0.0.0.0 192.168.50.1
ip route 192.168.0.0 255.255.252.0 192.168.50.1
ip route 192.168.23.0 255.255.255.0 192.168.50.1
!
!
logging trap warnings
logging host 10.0.35.29
!
!
!
no vstack
banner login ^C

OMA Emirates Authorized Personnel Only! Please enter your username and password

^C
banner motd ^C
***************************************************************************
                      !!!!!!!!!WARNING!!!!!!!!!
***************************************************************************
THIS SYSTEM IS SOLELY FOR THE USE OF AUTHORISED USERS FOR OFFICIAL PURPOSES.
UNAUTHORIZED ACCESS IS PROHIBITED.
THE SYSTEM IS MONITORED.
ANY ATTEMPT TO GAIN ACCESS WITHOUT PERMISSION WILL BE PROSECUTED.
*************************************************************************** ^C
!
line con 0
line vty 0 4
 session-timeout 5
 timeout login response 120
 login local
 --More--          length 0
line vty 5 15
 login
!
ntp server 192.168.50.1
!
end

OMAHO_LAN_CORESW1# 

[paul driver]

Hello

1) it looks like this switch is your core switch but is it also your stp root?

2) can you try adding a layer3 svi for vlan 50 and then changing  gig1/0/23 from a routed port to a switchport

interface vlan 50
 ip address 192.168.50.2 255.255.255.0
Ip route cache

exit

vlan 50

exit

default int gig1/0/23

int gig1/0/23

switchport host

switchport access vlan 50

exit

Spanning-tree vlan 1-4092 priority 0

No ip route 0.0.0.0 0.0.0.0 192.168.50.1
No ip route 192.168.0.0 255.255.252.0 192.168.50.1
No ip route 192.168.23.0 255.255.255.0 192.168.50.1

ip route 0.0.0.0 0.0.0.0 vlan 50 192.168.50.1

[sajin9231]

Hi Paul,

I tried the configuration as you suggested. The ip route cache command didn't work.

After changing the configuration, I could see a small improvement in the speed. Will observe further for making sure. Attaching the new configuration.