About Rlir; Specifying An Rlir Preferred Host - Cisco AP776A - Nexus Converged Network Switch 5020 Configuration Manual

Chapter 29 Configuring FICON
S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
Command
Step 3
switch(config-ficon)# portaddress 7
switch(config-ficon-portaddr)#
Step 4
switch(config-ficon-portaddr)# name SampleName
switch(config-ficon-portaddr)# no name SampleName

About RLIR

The Registered Link Incident Report (RLIR) application provides a method for a switch port to send an
Link Incident Record (LIR) to a registered Nx port. It is a highly available application.
When an LIR is detected in FICON-enabled switches in the Cisco MDS 9000 Family from a RLIR
Extended Link Service (ELS), the switch sends that record to the members in its Established Registration
List (ERL).
In case of multi-switch topology, a Distribute Registered Link Incident Record (DRLIR) Inter-Link
Service (ILS) is sent to all reachable remote domains along with the RLIR ELS. On receiving the DRLIR
ILS, the switch extracts the RLIR ELS and sends it to the members of the ERL.
The Nx ports interested in receiving the RLIR ELS send the Link Incident Record Registration (LIRR)
ELS request to the management server on the switch. The RLIRs are processed on a per-VSAN basis.
The RLIR data is written to persistent storage when the copy running-config startup-config command
is issued.

Specifying an RLIR Preferred Host

As of Cisco MDS SAN-OS Release 3.0(3), you can specify a preferred host to receive RLIR frames. The
MDS switch sends RLIR frames to the preferred host only if it meets the following conditions:
•
•
Note
You can specify only one RLIR preferred host per VSAN. By default, the switch sends RLIR frames to
one of the hosts in the VSAN with the register function set to "conditionally receive" if no hosts have
the register function set to "always receive."
OL-18084-01, Cisco MDS NX-OS Release 4.x
No host in the VSAN is registered for RLIR with the registration function set to "always receive."
If one or more hosts in the VSAN are registered as "always receive," then RLIR sends only to these
hosts and not to the configured preferred host.
The preferred host is registered with the registration function set to "conditionally receive."
If all registered hosts have the registration function set to "conditionally receive," then the
preferred host receives the RLIR frames.
Purpose
Selects port address 7 for further
configuration.
Assigns a name to the port address.
Note The port address name is restricted
to 24 alphanumeric characters.
Deletes a previously configured port
address name.
Cisco MDS 9000 Family CLI Configuration Guide
Configuring FICON Ports
29-27