09-26-2003 07:29 AM - edited 03-02-2019 10:37 AM
I'm working on a project for a client that has 5 4507Rs & a 6506 switche. There are 3 total VLANS (1-3). Each 4500 has 3-48 port FE blades, each spilt in half;24 to VLAN2 the other 24 to VLAN3. I have setup GB trunks from the 6500 to the 4500s. I can ping the VLAN IPs from any of the switches, but I can not seem to pass traffic from one switch to another, dispite what VLAN I try. ANy thoughts?
09-26-2003 07:33 AM
can you paste some configs?
09-26-2003 08:35 AM
I'm assuming you have created layer 3 definitions on at least one of your boxes , you can not pass traffic between vlans without a router . Make sure you have a routing protocol setup with the appropriate network statments to go along with it .
09-29-2003 03:58 AM
I found the issue with the traffic not being passed between switches. This command: spanning-tree uplinkfast max-update-rate 15 was causing my issue. However, not being an expert, my understanding of that command was to speed up convergence if one of my 2 uplinks went down. Here is the config for the 4500:
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service compress-config
!
hostname AGCSWH7
!
boot system bootflash:cat4000-i9s-mz.121-19.EW1.bin
no logging console
!
udld enable
ip subnet-zero
!
!
spanning-tree portfast default
spanning-tree extend system-id
spanning-tree uplinkfast max-update-rate 15
spanning-tree vlan 1-3 priority 49152
!
redundancy
mode rpr
main-cpu
auto-sync standard
!
!
interface Port-channel1
no ip address
!
interface GigabitEthernet1/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1-3
switchport mode trunk
spanning-tree portfast disable
!
interface GigabitEthernet1/2
!
interface GigabitEthernet2/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1-3
switchport mode trunk
spanning-tree portfast disable
!
interface GigabitEthernet2/2
!
interface FastEthernet3/1-24 ---VLAN2
interface FastEthernet3/25-48 ---VLAN3
<---This is the same for interfaces 4/1 & 5/1
!
interface Vlan1
ip address 192.168.151.7 255.255.255.0
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.151.254
no ip http server
!
!
snmp-server community expert RO
snmp-server community maggot RW
snmp-server enable traps snmp authentication warmstart linkdown linkup coldstart
snmp-server enable traps vtp
snmp-server enable traps config
snmp-server enable traps entity
!
!
line con 0
stopbits 1
line vty 0 4
login
Let me know what I am missing about the uplink fast.
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