Reference v4.1.0 Instruction Manual

Network OS Command Reference 763
53-1003115-01
show fabric islports
2
Down, (Reason Code)
The ISL is down due to the given reason code.
In this command, ISL segmentation is denoted as “ISL segmented, (segmentation reason)”.
The segmentation reason could be any of those listed below.
In this command, disabled ports are denoted as “Down (Disabled reason)”. The disabled reason
could be any of those listed below.
Segmentation reasons
Number Segmentation Explanation
1 RBridge ID Overlap When a new node joins the cluster with the RBridge-id
already existing in the cluster.
2 ESC mismatch, Unknown Only on one side of the ISL, the actual ESC mismatch
reason code will be displayed. On the other end,
Unknown will be displayed.
3 ESC mismatch, Config Mode Brocade VCS Fabric mode is different on both switches.
4 ESC mismatch, Distributed Config DB The DCM Configuration DB is different on both the ends
of ISL.
5 ESC mismatch, Brocade VCS Fabric License Brocade VCS Fabric license is enabled on one end and
disabled on the other side.
6 ESC mismatch, Fabric Distribution Service FDS state is different on both the ends.
7 zone conflict Zone configuration is not same on both the switches.
8 ISL Disabled This port is disabled to be an ISL.
9 ISL Isolated If BF or DIA is rejected then the port will get isolated.
10 LD inc om pat ability ECP rejected or retries exceeded.
11 FDS Zone Conflict FDS configuration caused zone conflict.
12 ESC mismatch, VCS Virtual Fabric Mode
Conflict
Virtual Fabric mode is enabled on one end and disabled
on the other end.
Disabled port reasons
Number Disabled Reasons Explanation
1 Admin Port is persistently disabled.
2 Protocol Incomplete The ISL couldn’t complete the link protocol. Stuck in G_PORT
state.
3 RBridge ID Overlap Two nodes in the cluster requested for same RBridge ID.
4 Long distance inc om pat ability Long distance configuration doesn’t match.
5 ELP retries exceeded Max ELP retires exceeded but no response from the other
end.
6 Zone conflict Zoning configuration overlaps.
7 ESC Config Mode Conflict The link has been segmented due to different Brocade
VCS Fabric mode.
8 ESC NOS incompatible Other end doesn’t support Brocade VCS Fabric technology.
9 ESC Distributed Config DB Conflict DCM Configuration DB conflict.
10 ESC VCS Fabric License Conflict Brocade VCS Fabric license is not enabled on one end.