06-26-2005 05:23 PM - edited 03-02-2019 11:12 PM
I have eight C3550 switches connected to a C6509 (gig ports). About every 5 days the C3550 switches have very spotty pings to the VLAN 102 segment and basically all the PC's connected to those switches loose network access to VLAN 102. It seems when this issue happens I can ping the Vlan 100 just fine from the C3550's.
Also the 6509 Cannot ping the vlan 102 when this issue happens even if the server sits on the 6509.
any suggestions?
06-29-2005 12:03 AM
Hello,
if this happens at regular intervals (every 5 days, as you mentioned), some sort of spanning tree convergence could be causing this behaviour. Can you see any increased (error) counters on the Gigagbit (trunk) interfaces when this occurs ? Also, can you post the configuration of the 6509, as well as one of the 3550 switches ? Which (IOS or CatOS) version are you running on the 6509 ?
Regards,
GP
06-30-2005 09:27 AM
I'm not seeing any increased error counters on the Gigabit truck interface. the 6509 is running Version 12.2(17a)SX1 and the 3550's are running (C3550-IPBASE-M), Version 12.2(25)SEB2
thanks!!!! Adam
Here is the 3550 config,
Password:
Password:
6509>en
Password:
6509#shwo ru ow run
Building configuration...
Current configuration : 27499 bytes
!
! Last configuration change at 08:06:06 EST Sat Jun 18 2005
! NVRAM config last updated at 07:53:44 EST Sat Jun 18 2005
!
here is the 3550 config,
show run
Building configuration...
Current configuration : 7124 bytes
!
! No configuration change since last restart
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname upstairs_10.175.102.8
!
logging console critical
logging monitor critical
enable secret 5
!
no aaa new-model
clock timezone EST -5
ip subnet-zero
ip domain-name xxxxxx
ip name-server 10.175.102.16
ip name-server 10.175.102.17
--More-- !
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
vlan internal allocation policy ascending
!
interface FastEthernet0/1
switchport access vlan 102
switchport mode access
spanning-tree portfast
!
interface FastEthernet0/47
switchport access vlan 102
switchport mode access
spanning-tree portfast
!
interface FastEthernet0/48
switchport access vlan 102
switchport mode access
--More-- duplex full
spanning-tree portfast
!
interface GigabitEthernet0/1
switchport access vlan 102
switchport mode access
!
interface GigabitEthernet0/2
switchport mode dynamic desirable
!
interface Vlan1
no ip address
shutdown
!
interface Vlan102
ip address 10.175.102.8 255.255.255.0
!
ip default-gateway 10.175.102.1
ip classless
ip http server
!
logging trap notifications
logging 10.175.100.71
--More-- snmp-server community xxxxxx RW
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps tty
snmp-server enable traps cluster
snmp-server enable traps entity
snmp-server enable traps envmon
snmp-server enable traps cpu threshold
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 MAC-Notification
snmp-server enable traps copy-config
snmp-server enable traps config
snmp-server enable traps hsrp
snmp-server enable traps rtr
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 vlan-membership
!
--More-- control-plane
!
!
line con 0
password 7
login
line vty 0 4
password 7
login
line vty 5 15
password 7
login
!
ntp clock-period 17180206
ntp server 128.10.252.10
!
end
upstairs_10.175.102.8#
06-30-2005 09:32 AM
my 6509 config is too big, can I email it to you?
thanks,
Adam
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