One more point worth mentioning is that you need "ipv4 unnumbered mpls
traffic-eng Loopback0" in global config mode on IOS XR to get the
auto-mesh TE tunnels signalled. Otherwise, you see "Reason for the
tunnel being down: No IP source address is configured" in show mpls
traffic-eng tunnels.
It took me ages to find out how to configure the IP address on the
interface as the attribute-set does not allow you to specify it. I
would've thought this command would go under the mpls traffic-eng
hierarchy or as part of the attribute-set...
Pavel
On 26/03/2012 11:15, Xu Hu wrote:
Hi Team,
I had something new to updated this topic. I want to highlight two things
that need to be careful.
1. In the auto-tunnel mesh, if you want to define the destination-list,
must remember to use the prefix list not the access-list, if you use the
access-list, the auto-tunnel also can created, but the number and path is
wrong, i trouble shooting so much time.
2.If you don't see the backup tunnel work, you need to check if you enable
the backup tunnel under the interface.
The command is like this: mpls traffic-eng interface auto-tunnel backup,
that's all.
Hu Xu
2012/2/27 Xu Hu <[email protected]>
You can use the Cisco Tools of "Cisco Feature Navigator" to check whether
your platform can support or not.
Xu Hu
2012/2/27 David Barak <[email protected]>
BFD is great stuff. Is there any chance of getting BFD on the 45k
platform?
David Barak
(apologies for the mobile-device-style top post)
------------------------------
* From: * Oliver Boehmer (oboehmer) <[email protected]>;
* To: * <[email protected]>; Xu Hu <[email protected]>;
* Cc: * <[email protected]>;
* Subject: * Re: [c-nsp] MPLS TE conver from IOS to IOS-XR
* Sent: * Mon, Feb 27, 2012 5:58:18 AM
"Timer intervals configured, Hello 333 msec, Dead 1, Wait
1, Retransmit 5"
So what you're talking about is the "OSPF Support for Fast
Hellos" feature from Cisco:
http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fasthelo.html
This feature combines the Hello Interval and Dead Interval,
along with some enhancements that make it behave like BFD in
a way.
AFAICT, it's only supported in IOS (and perhaps, IOS XE).
You can tweak both the Hello and Dead Interval timers in IOS
XR, but they lack of the enhancements to enable fast
detection.
For IOS XR, yes, BFD is your best bet.
this holds true for any platform, fast hellos just don't scale.. so
please use BFD if you need to detect neighbour failures quickly.
oli
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