10-24-2023 05:04 AM - edited 10-24-2023 05:05 AM
Hi there
I'm facing a critical problem with my cisco core switch, the ping is timed out for 4 or 5 times causes the whole network to freeze, which impacting the connected laptops or pcs to hang for some seconds,
the show version output is:
Cisco IOS Software, IOS-XE Software, Catalyst 4500 L3 Switch Software (cat4500e-UNIVERSAL_LITE-M), Version 03.04.00.SG RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Wed 05-Dec-12 06:53 by prod_rel_team
Cisco IOS-XE software, Copyright (c) 2005-2010, 2012 by cisco Systems, Inc.
All rights reserved. Certain components of Cisco IOS-XE software are
licensed under the GNU General Public License ("GPL") Version 2.0. The
software code licensed under GPL Version 2.0 is free software that comes
with ABSOLUTELY NO WARRANTY. You can redistribute and/or modify such
GPL code under the terms of GPL Version 2.0. For more details, see the
documentation or "License Notice" file accompanying the IOS-XE software,
or the applicable URL provided on the flyer accompanying the IOS-XE
software.
ROM: 15.0(1r)SG3
SW-CORE uptime is 6 days, 23 hours, 46 minutes
Uptime for this control processor is 1 day, 4 hours, 15 minutes
System returned to ROM by SSO Switchover
System image file is "bootflash:cat4500e-universal_lite.SPA.03.04.00.SG.151-2.SG.bin"
Jawa Revision 7, Winter Revision 0x0.0x1C
Last reload reason: Stateful Switchover
License Information for 'WS-X45-SUP7L-E'
License Level: ipbase Type: Permanent
Next reboot license Level: ipbase
cisco WS-C4507R+E (MPC8572) processor (revision 4) with 2097152K/20480K bytes of memory.
Processor board ID FXS1633Q16N
MPC8572 CPU at 1.5GHz, Supervisor 7L-E
Last reset from Reload
1 Virtual Ethernet interface
104 Gigabit Ethernet interfaces
4 Ten Gigabit Ethernet interfaces
511K bytes of non-volatile configuration memory.
Configuration register is 0x2102
the attached screens show the cpu statues and the mentioned ping problem from core switch
10-24-2023 07:21 AM
Hi,
The CPU looks okay. What is IP 10.1.1.1?
Can you post the output of "sh run"
Also, are you pinging from a PC? What are the source and destination IPs?
HTH
10-24-2023 07:59 AM - last edited on 10-24-2023 05:18 PM by shule
SW-CORE#show run
Building configuration...
Current configuration : 9258 bytes
!
! Last configuration change at 14:00:05 cairo Tue Oct 24 2023
!
version 15.1
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
service compress-config
!
hostname SW-CORE
!
boot-start-marker
boot system flash bootflash:cat4500e-universal_lite.SPA.03.04.00.SG.151-2.SG.bin
boot system flash bootflash:
boot system flash bootflash::cat4500e-universal_lite.SPA.03.04.00.SG.151-2.SG.bin
boot-end-marker
!
!
vrf definition mgmtVrf
!
address-family ipv4
exit-address-family
!
address-family ipv6
exit-address-family
!
logging count
logging message-counter log
logging message-counter debug
logging userinfo
logging persistent
logging event link-status global
logging event trunk-status global
enable password 7 X.X.X
!
no aaa new-model
clock timezone cairo 2 0
hw-module uplink select tengigabitethernet
link state track 1
!
ip vrf Liin-vrf
!
!
!
ipv6 multicast rpf use-bgp
!
diagnostic event-log size 10000
diagnostic schedule module 3 test non-disruptive daily 10:00 cardindex 394 jobindex 1
diagnostic schedule module 4 test non-disruptive daily 10:00 cardindex 394 jobindex 1
diagnostic bootup level complete
diagnostic monitor syslog
diagnostic monitor interval module 3 test supervisor-bootup 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 3 test linecard-online-diag 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 3 test stub-rx-errors 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 3 test supervisor-rx-errors 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 4 test supervisor-bootup 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 4 test linecard-online-diag 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 4 test stub-rx-errors 10:00:00 999 5 cardindex 394
diagnostic monitor interval module 4 test supervisor-rx-errors 10:00:00 999 5 cardindex 394
diagnostic power-fail logging
power redundancy-mode redundant
!
mac access-list extended A
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree loopguard default
spanning-tree extend system-id
spanning-tree vlan 1 priority 24576
!
redundancy
mode sso
main-cpu
auto-sync standard
!
vlan internal allocation policy ascending
lldp timer 900
lldp run
!
!
!
!
!
!
!
interface FastEthernet1
vrf forwarding mgmtVrf
no ip address
speed auto
duplex auto
!
interface GigabitEthernet1/1
spanning-tree portfast
!
interface GigabitEthernet1/2
spanning-tree portfast
!
interface GigabitEthernet1/3
spanning-tree portfast
!
interface GigabitEthernet1/4
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/5
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/6
switchport mode access
speed 1000
spanning-tree portfast
!
interface GigabitEthernet1/7
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/8
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/9
spanning-tree portfast
!
interface GigabitEthernet1/10
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/11
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/12
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/13
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/14
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/15
spanning-tree portfast
!
interface GigabitEthernet1/16
spanning-tree portfast
!
interface GigabitEthernet1/17
spanning-tree portfast
!
interface GigabitEthernet1/18
spanning-tree portfast
!
interface GigabitEthernet1/19
spanning-tree portfast
!
interface GigabitEthernet1/20
spanning-tree portfast
!
interface GigabitEthernet1/21
spanning-tree portfast
!
interface GigabitEthernet1/22
spanning-tree portfast
!
interface GigabitEthernet1/23
spanning-tree portfast
!
interface GigabitEthernet1/24
spanning-tree portfast
!
interface GigabitEthernet1/25
spanning-tree portfast
!
interface GigabitEthernet1/26
spanning-tree portfast
!
interface GigabitEthernet1/27
spanning-tree portfast
!
interface GigabitEthernet1/28
spanning-tree portfast
!
interface GigabitEthernet1/29
spanning-tree portfast
!
interface GigabitEthernet1/30
spanning-tree portfast
!
interface GigabitEthernet1/31
spanning-tree portfast
!
interface GigabitEthernet1/32
spanning-tree portfast
!
interface GigabitEthernet1/33
spanning-tree portfast
!
interface GigabitEthernet1/34
spanning-tree portfast
!
interface GigabitEthernet1/35
mac access-group A in
mac access-group A out
spanning-tree portfast
!
interface GigabitEthernet1/36
spanning-tree portfast
!
interface GigabitEthernet1/37
spanning-tree portfast
!
interface GigabitEthernet1/38
spanning-tree portfast
!
interface GigabitEthernet1/39
spanning-tree portfast
!
interface GigabitEthernet1/40
spanning-tree portfast
!
interface GigabitEthernet1/41
spanning-tree portfast
!
interface GigabitEthernet1/42
spanning-tree portfast
!
interface GigabitEthernet1/43
spanning-tree portfast
!
interface GigabitEthernet1/44
spanning-tree portfast
!
interface GigabitEthernet1/45
spanning-tree portfast
!
interface GigabitEthernet1/46
spanning-tree portfast
!
interface GigabitEthernet1/47
spanning-tree portfast
!
interface GigabitEthernet1/48
spanning-tree portfast
!
interface GigabitEthernet2/1
spanning-tree portfast
!
interface GigabitEthernet2/2
spanning-tree portfast
!
interface GigabitEthernet2/3
spanning-tree portfast
!
interface GigabitEthernet2/4
spanning-tree portfast
!
interface GigabitEthernet2/5
spanning-tree portfast
!
interface GigabitEthernet2/6
spanning-tree portfast
!
interface GigabitEthernet2/7
spanning-tree portfast
!
interface GigabitEthernet2/8
spanning-tree portfast
!
interface GigabitEthernet2/9
spanning-tree portfast
!
interface GigabitEthernet2/10
spanning-tree portfast
!
interface GigabitEthernet2/11
spanning-tree portfast
!
interface GigabitEthernet2/12
spanning-tree portfast
!
interface GigabitEthernet2/13
spanning-tree portfast
!
interface GigabitEthernet2/14
spanning-tree portfast
!
interface GigabitEthernet2/15
spanning-tree portfast
!
interface GigabitEthernet2/16
spanning-tree portfast
!
interface GigabitEthernet2/17
spanning-tree portfast
!
interface GigabitEthernet2/18
spanning-tree portfast
!
interface GigabitEthernet2/19
spanning-tree portfast
!
interface GigabitEthernet2/20
spanning-tree portfast
!
interface GigabitEthernet2/21
spanning-tree portfast
!
interface GigabitEthernet2/22
spanning-tree portfast
!
interface GigabitEthernet2/23
spanning-tree portfast
!
interface GigabitEthernet2/24
spanning-tree portfast
!
interface GigabitEthernet2/25
spanning-tree portfast
!
interface GigabitEthernet2/26
spanning-tree portfast
!
interface GigabitEthernet2/27
spanning-tree portfast
!
interface GigabitEthernet2/28
spanning-tree portfast
!
interface GigabitEthernet2/29
spanning-tree portfast
!
interface GigabitEthernet2/30
spanning-tree portfast
!
interface GigabitEthernet2/31
spanning-tree portfast
!
interface GigabitEthernet2/32
spanning-tree portfast
!
interface GigabitEthernet2/33
spanning-tree portfast
!
interface GigabitEthernet2/34
spanning-tree portfast
!
interface GigabitEthernet2/35
spanning-tree portfast
!
interface GigabitEthernet2/36
spanning-tree portfast
!
interface GigabitEthernet2/37
description SW602
spanning-tree portfast
!
interface GigabitEthernet2/38
spanning-tree portfast
!
interface GigabitEthernet2/39
spanning-tree portfast
!
interface GigabitEthernet2/40
spanning-tree portfast
!
interface GigabitEthernet2/41
spanning-tree portfast
!
interface GigabitEthernet2/42
spanning-tree portfast
!
interface GigabitEthernet2/43
spanning-tree portfast
!
interface GigabitEthernet2/44
spanning-tree portfast
!
interface GigabitEthernet2/45
spanning-tree portfast
!
interface GigabitEthernet2/46
spanning-tree portfast
!
interface GigabitEthernet2/47
spanning-tree portfast
!
interface GigabitEthernet2/48
spanning-tree portfast
!
interface TenGigabitEthernet3/1
switchport mode access
bandwidth 10000000
ip device tracking maximum 10
!
interface TenGigabitEthernet3/2
switchport mode access
ip device tracking maximum 10
!
interface GigabitEthernet3/3
!
interface GigabitEthernet3/4
!
interface GigabitEthernet3/5
!
interface GigabitEthernet3/6
!
interface TenGigabitEthernet4/1
ip device tracking maximum 10
!
interface TenGigabitEthernet4/2
ip device tracking maximum 10
!
interface GigabitEthernet4/3
!
interface GigabitEthernet4/4
!
interface GigabitEthernet4/5
!
interface GigabitEthernet4/6
!
interface Vlan1
ip address 10.1.1.1 255.255.248.0
no ip redirects
logging event link-status
logging event subif-link-status
history BPS
spanning-tree guard loop
!
ip http server
ip route 0.0.0.0 0.0.0.0 10.1.1.0
!
!
logging origin-id ip
logging facility user
logging source-interface Vlan1
logging server-arp
logging host 10.1.7.120
logging host 10.1.2.10
cdp timer 240
!
!
!
line con 0
password 7 X.X.X
login
stopbits 1
line vty 0 4
password 7 X.X.X
login
!
!
monitor session 1 destination interface Gi2/13
monitor session 1 filter packet-type good rx
end
I'm pinging from pc direct connected the core switch, the ping suddenly drops for 5 or 6 replies, in the meantime, the whole company network stuck,
10-24-2023 08:08 AM
10-24-2023 08:37 AM - edited 10-24-2023 08:37 AM
Looking at "sh run" you posted, I see this
ip route 0.0.0.0 0.0.0.0 10.1.1.0
The target IP needs to be a host address e.g,
ip route 0.0.0.0 0.0.0.0 10.1.1.2
What is the core switch is pointing to or uplink to (north bound)?
HTH
10-25-2023 06:28 AM
the ip route cammand is targeting to the next hope which is the firewall to access internet
10-25-2023 07:08 AM
But according to this statement, 10.1.1.0 is the subnet and not the specific host address (firewall in your case).
ip route 0.0.0.0 0.0.0.0 10.1.1.0
HTH
10-25-2023 07:15 AM
my NW subnet is /21, so the IP 10.1.1.0 is valid IP
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