r/Juniper•
ciscoworlds

RSVP strange behavior on Junos 25.2R1.9 (EVE-NG)

Question

Hi.

While best IGP path between ingress and egress points of a static LSP doesn't pass through a particular router which I restrict bw on it, but again LSP doesn't come up stating "there is no requested bandwidth".

https://preview.redd.it/efsqohy0d7og1.png?width=1399&format=png&auto=webp&s=f20b1fc16d153689fab071861c317ab90f932d56

PE routers are R1 and R10 and as seen below, best path is through R2, not R7, which was shown as yellow.

root@R1# run show route 10.0.0.10/32

10.0.0.10/32*[OSPF/10] 00:08:50, metric 4

> to 10.1.2.2 via ge-0/0/2.0

to 10.1.7.7 via ge-0/0/3.0

However LSP logs says path doesn't have enough bandwidth & I don't know why. Any idea?

root@R1# run show mpls lsp detail

Ingress LSP: 1 sessions

10.0.0.10

From: 10.0.0.1, State: Dn, ActiveRoute: 0, LSPname: R1_TO_R10, LSPid: 2

ActivePath: (none)

LSPtype: Static Configured, Penultimate hop popping

LoadBalance: Random

Follow destination IGP metric

Encoding type: Packet, Switching type: Packet, GPID: IPv4

LSP Self-ping Status : Enabled

Primary State: Dn

Priorities: 7 0

Bandwidth: 10Mbps

SmartOptimizeTimer: 180

Flap Count: 0

MBB Count: 0

4 Mar 10 11:06:55.667 10.1.7.7: Requested bandwidth unavailable[8 times, first Mar 10 10:57:33.639]

Total 1 displayed, Up 0, Down 1

Posted Mar 10, 2026, 11:26 AM UTC

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