02-03-2009 12:36 AM
Hello
i have 3 tire n/w architecture for the datacenter with access=distribution-core.In the aggegation i want to separate the diffrent vlan traffic with VRF for path isolation purpose.same i want to extend to core and then to wan firewall (firewall is vrf aware)..can you share the sample scenario/configuration for the same.
02-04-2009 08:45 PM
02-04-2009 10:04 PM
Hello
i found this on one cisco document
Theoretically the same VLAN tag could be use for the same virtual networks on the different
physical links belonging to the same device; this is for example possible when defining
sub-interfaces on Cisco ISR routers. However, the current implementation on Catalyst 6500 does not
support that option. The output below shows the message received when trying to use the same
VLAN tag on two separate sub-interfaces:
Catalyst-1(config)#int g1/1.2001
Catalyst-1(config-subif)#encapsulation dot1Q 2001
Catalyst-1 (config-subif)#int g1/2.2001
Catalyst-1(config-subif)#encapsulation dot1Q 2001
Command rejected: VLAN 2001 not available
i think we are planning to use same 666 on diffrent physical links.will this be supported on my cat 6509(SV33AIK9-12233SXH CAT 6000-VSS720 IOS ADVANCED IP SERVICES SSH)
02-04-2009 11:00 PM
Sorry cannot help you whether its possible on that platform or not.
I know it most certainly is possible on Nexus 7000:
ltd-n7010-1# conf t
Enter configuration commands, one per line. End with CNTL/Z.
ltd-n7010-1(config)# int ethernet 2/25
ltd-n7010-1(config-if)# no switchport
ltd-n7010-1(config-if)# int eth2/25.10
ltd-n7010-1(config-subif)# encap dot1Q 100
td-n7010-1(config)# int ethernet 2/24
ltd-n7010-1(config-if)# no switchport
ltd-n7010-1(config-if)# int eth2/24.10
ltd-n7010-1(config-subif)# encap dot1Q 100
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