Hi, everyone,
there's an issue that bother me for a long time, here's the topology:
R1----(2*100m---ae0)----R2----(2*100m---ae1)-----R3
R1, R2 and R3 connect each other directly with double 100m links in an aggregate interface, then I launch the MPLS TE:
label-switched-path r1-to-r3 {
to 3.3.3.3;
bandwidth 150m; ## here the reserved bw=150m
primary path1;
}
so at the first time, the rsvp session is up and everything is ok:
MX> show rsvp session
Ingress RSVP: 1 sessions
To From State Rt Style Labelin Labelout LSPname
3.3.3.3 1.1.1.1 Up 0 1 FF - 305424 r1-to-r3
Total 1 displayed, Up 1, Down 0
vMX-1> show rsvp interface
RSVP interface: 9 active
Active Subscr- Static Available Reserved Highwater
Interface State resv iption BW BW BW mark
fe-0/0/0.0 Up 1 100% 200Mbps 50Mbps 150Mbps 150Mbps
however, when i admin down the memberlink of an aggregate interface between R1 and R2 using:
set interface fe-0/0/0 disable
the unexpected thing happened, i thought the LSP will down because of insufficient bandwidth, but it doesn't.
when i show rsvp session, it's still there:
MX> show rsvp session
Ingress RSVP: 1 sessions
To From State Rt Style Labelin Labelout LSPname
3.3.3.3 1.1.1.1 Up 0 1 FF - 305424 r1-to-r3
Total 1 displayed, Up 1, Down 0
but i can see the error log using show mpls lsp name r1-to-r3 extensive command:
28 Sep 17 05:39:59.873 CSPF failed: no route toward 1.1.12.2[23 times] # the retry time increasing all the time
27 Sep 17 05:16:51.991 Negative available bandwidth 1.1.12.1
26 Sep 17 05:14:10.544 CSPF failed: no route toward 1.1.12.2[91 times]
and then I lookup the rsvp interface using show rsvp interface on R1, another strange thing happened, it shows an negative number:
vMX-1> show rsvp interface
RSVP interface: 9 active
Active Subscr- Static Available Reserved Highwater
Interface State resv iption BW BW BW mark
fe-0/0/0.0 Up 1 100% 100Mbps -50Mbps 150Mbps 150Mbps
i'm not sure whether this phenomenon is correct or not, actually when i use cisco ios, the LSP went down immediately.
Could anybody help me? thank you so much !