MPLS TE equal or unequal load balancing doesn't work?

[scytmax_2]

Dear Sir!

I've two MPLS TE tunnels from one PE to another PE.

And there are traffic share count between them

(as tunnel mpls traffic-eng load-share command define).

But in real life all traffic from the same source to the same destination go through only one tunnel

(as CEF define - i.e. how sh ip cef exact-route says).

PEs are 3660 platforms with c3660-jk9o3s-mz.123-8.T

installed.

How can I correct this problem?

Best regards,

Maxim Denisov

[Harold Ritter]

This is expected behavior since CEF is used at the head end to perform label imposition. I wouldn't recommend changing the default bahavior to per=packet loadsharing since this could lead to of of sequence packets, which could lower the overall performance.

Hope this helps,

[scytmax_2]

Dear Sir!

I'm agree with you as MPLS TE tunnels are opened from PE to PE, so CEF does it work.

But if I open this tunnels from P to PE, ONLY ONE of this tunnels are used instead of load-sharing, if traffic go from one source (of site1 of VPN1) to the same destination (located at site2 of VPN1).

Why? Packet through P-devices swithes by labels, so I mean that CEF cannot does src-dst load sharing?

My problem are that I must to do load sharing between this two tunnels in the case above.

Q: How can I solve this problem?

Best regards,

Maxim Denisov