I've got a 6509-E in the lab at the moment for some pre-deployment testing, however I don't seem to be able to enable MPLS on a select interface.
router(config)# interface gi1/48
As you can see after I enter the "MPLS IP" command it simply backs out of interface level configuration back to global exec, and naturally the MPLS command doesn't show in configuration for that interface.
Am I missing something obvious or do I have a genuine issue?
I'm running a SUP720-3BXL with WS-X6748-GE-TX line cards with the DFC upgrade (WS-F6700-3BXL).
The IOS is: s72033-adventerprisek9_wan-mz.122-33.SXI2a.bin
Is the port pre-configured with no switchport and assigned an IP address?
It may be possible that the MPLS is only supported on selected line cards but I have no personal experience with 6500 boxes so this has to be taken with a grain of salt. Hopefully someone with bigger experiences joins this thread!
You mean using the tag-switching ip ? Right, that was the original command to activate MPLS and its predecessor, Tag Switching... yeah, I remember seeing that command on earlier IOSes. Most of recent IOSes have reverted to using mpls ip instead of the tag-switching ip. Thanks for pointing this out, hopefully it solves the mystery here!
Many thanks for your input Peter & Leo, in the end I think this problem boiled down to a supervisor issue of some sort.
Previously when I treid to enable the command it was after I'd done some NSF/SSO testing by rebooting a supervisor, and was running from the new Active SUP (was previously standby). So possibly a dCEF sync issue of some sort, based on the fact MPLS requries an operational FIB table from CEF.
Once I cold-powered the chassis again and let everything start fresh I was able to enter the command succesfully, might be worth noting with 12.2SXI I also had to enable:
"mpls label-protocol ldp"
Seems because 12.2SXI has support of both TDP & LDP that LDP isn't default.
Once I did that the LDP session came up with the 7204 VXR running IOS 15.
Also "tag-switching ip" isn't supported on 12.2SXI, I checked this first to see if needed to run the original incarnation of MPLS / Tag Switching.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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