Cisco is known for the inconsistencies between platforms and different IOS versions. I came across another that was rather annoying. Now between linecards.

Trying to configuring the following standard sub-interface Ethernet AToM tunnel on a Cisco 7606 with a ES+ linecard:

pseudowire-class CISCO
 encapsulation mpls
!
interface Te2/2.2
 encapsulation dot1Q 2
 no ip redirects
 no ip directed-broadcast
 no ip proxy-arp
 xconnect 10.5.0.99 12345 encap mpls pw-class CISCO

Yields the following misleading error…

7606(config)#int te2/2.2
7606(config-subif)# xconnect 10.5.0.99 12345 encap mpls pw-class CISCO
MPLS encap is not supported on this circuit

Continue reading “Cisco and their inconsistencies” →