From: Jason Graun (jgraun@xxxxxxxxxx)
Date: Mon Feb 11 2002 - 12:52:31 GMT-3
Has anybody seen a configs were you have a bridge-group 1 defined on two
differents router=92s Ethernet interfaces and then share the same vlan
across on ISL trunk on one side to a 5505? Here are the configs and a
diagram. What happens is once I have issued the bridge-group 1 on the
Ethernet interfaces the trunk link on the 5505 with go from trunk to
non-trunk for about 4-5 seconds and then once it is a trunk link again
it will take about 45-46 seconds then go from trunk to non-trunk and
back again. I am assuming this is some type of spanning tree issue. I
have tried using IEEE for the bridge protocol type and have not seen any
changes. I am link I might need to use Ethernet redundancy techniques
instead of my current configs. Thanks for the help.
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I have removed most of the unimportant configs for clarity
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version 12.1
!
hostname r5
!
dlsw local-peer peer-id 135.1.5.5
dlsw remote-peer 0 tcp 135.1.6.6
dlsw bridge-group 1
dlsw transparent switch-support
!
!
interface Loopback0
ip address 135.1.5.5 255.255.255.0
ip ospf network point-to-point
!
interface Ethernet0/0
ip address 135.1.56.5 255.255.255.224
ip ospf priority 0
half-duplex
bridge-group 1
!
interface TokenRing0/0
ip address 135.1.155.5 255.255.255.128
ring-speed 16
!
bridge group 1 protocol vlan-bridge
!
end
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version 12.1
!
hostname r6
!
!
dlsw local-peer peer-id 135.1.6.6
dlsw remote-peer 0 tcp 135.1.5.5
dlsw bridge-group 1
!
!
interface Loopback0
ip address 135.1.6.6 255.255.255.0
ip ospf network point-to-point
!
interface Serial0/0
no ip address
encapsulation frame-relay
frame-relay lmi-type cisco
!
interface Serial0/0.346 point-to-point
ip address 135.1.50.6 255.255.255.0
ip ospf network point-to-multipoint
ip ospf priority 0
frame-relay interface-dlci 604 =20
!
interface FastEthernet0/1
no ip address
duplex auto
speed auto
!
interface FastEthernet0/1.36
encapsulation isl 36
ip address 135.1.36.6 255.255.255.0
no ip redirects
!
interface FastEthernet0/1.56
encapsulation isl 56
ip address 135.1.56.6 255.255.255.224
no ip redirects
bridge-group 1
!
bridge 1 protocol vlan-bridge
!
no scheduler allocate
end
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Jason C. Graun CCNP CCDA MCSE
Network Engineering
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