[j-nsp] VC ports not working until they are reset

[Andreas Schlee]

Hello,

After reboot of our QFX5100 / EX4300 Mixed virtual chassis we lost connection
to several units. We can see the VC-Ports being up but they cannot see their
neighbor.

We deleted the Ports 1/2 of fpc4 and reset it as vc-port. After that the
connection worked again. The same has been done two times more with several
other connections to get a fully working virtual chassis again.

We see this quite often, nearly everytime we rebooted one of our VCs on
different VC.

Does anyone else notice such a problem with VC ports? This does not seem to be
a physical problem because the ports are working after they are being deleted
and set again as VC port.

After bootup:
Mstr Mixed Route Neighbor List
Member ID Status Serial No Model prio Role Mode Mode ID Interface
0 (FPC 0) Prsnt XXXXXXXXXXXX qfx5100-48t-6q 129 Master* Y VC 9 vcp-255/0/48
1 vcp-255/0/50
1 (FPC 1) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 0 vcp-255/1/0
2 vcp-255/1/2
2 (FPC 2) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 1 vcp-255/1/0
3 vcp-255/1/2
3 (FPC 3) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 2 vcp-255/1/0
4 vcp-255/1/2
4 (FPC 4) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 3 vcp-255/1/0
5 (FPC 5) NotPrsnt XXXXXXXXXXXX qfx5100-48t-6q
6 (FPC 6) NotPrsnt XXXXXXXXXXXX ex4300-48t
7 (FPC 7) NotPrsnt XXXXXXXXXXXX ex4300-48t
8 (FPC 8) NotPrsnt XXXXXXXXXXXX ex4300-48t
9 (FPC 9) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 0 vcp-255/1/2


fpc4:
--------------------------------------------------------------------------
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/0 Configured -1 Up 40000 3 vcp-255/1/2
1/2 Configured -1 Up 40000
1/3 Configured Absent
1/1 Configured Absent

fpc9:
--------------------------------------------------------------------------
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/0 Configured -1 Up 40000
1/2 Configured -1 Up 40000 0 vcp-255/0/48
1/3 Configured Absent
1/1 Configured Absent

request virtual-chassis vc-port delete pic-slot 1 port 2 member 4

fpc4:
--------------------------------------------------------------------------
Port deletion initiated, use cmd show virtual-chassis vc-port to verify

{master:0}

show virtual-chassis vc-port member 4

fpc4:
--------------------------------------------------------------------------
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/0 Configured -1 Up 40000 3 vcp-255/1/2
1/3 Configured Absent
1/1 Configured Absent

{master:0}

request virtual-chassis vc-port set pic-slot 1 port 2 member 4

fpc4:
--------------------------------------------------------------------------
Port conversion initiated, use show virtual-chassis vc-port to verify

{master:0}

show virtual-chassis vc-port member 4

fpc4:
--------------------------------------------------------------------------
Interface Type Trunk Status Speed Neighbor
or ID (mbps) ID Interface
PIC / Port
1/0 Configured -1 Up 40000 3 vcp-255/1/2
1/2 Configured -1 Up 40000 5 vcp-255/0/48
1/3 Configured Absent
1/1 Configured Absent

{master:0}


Member ID Status Serial No Model prio Role Mode Mode ID Interface
0 (FPC 0) Prsnt XXXXXXXXXXXX qfx5100-48t-6q 129 Master* Y VC 9 vcp-255/0/48
1 vcp-255/0/50
1 (FPC 1) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 0 vcp-255/1/0
2 vcp-255/1/2
2 (FPC 2) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 1 vcp-255/1/0
3 vcp-255/1/2
3 (FPC 3) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 2 vcp-255/1/0
4 vcp-255/1/2
4 (FPC 4) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 3 vcp-255/1/0
5 vcp-255/1/2
5 (FPC 5) Prsnt XXXXXXXXXXXX qfx5100-48t-6q 129 Backup Y VC 4 vcp-255/0/48
6 vcp-255/0/50
6 (FPC 6) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 5 vcp-255/1/0
7 (FPC 7) NotPrsnt XXXXXXXXXXXX ex4300-48t
8 (FPC 8) NotPrsnt XXXXXXXXXXXX ex4300-48t
9 (FPC 9) Prsnt XXXXXXXXXXXX ex4300-48t 0 Linecard Y VC 0 vcp-255/1/2



Regards,
Andreas
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