On Monday 29 September 2008 09:54:06 Richard A Steenbergen wrote: > For an LSP with the head on Juniper and tail on Cisco, > this works around Cisco's inability to set an igp cost of > 0 on its loopback interface. If you ever wondered why the > #$%^& your lsp cost was 1 higher than your igp cost, now > you know. :)
On the IOS side, this can be solved by NOT running IS-IS on the Loopback interface. Instead, you'd inject the Loopback's IP address into IS-IS with the 'passive-interface Loopback0' command. This has the effect of introducing the Loopback address into IS-IS with a metric of zero (0). Cheers, Mark.
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