Configuring The Fcf Priority; Configuring The System Fcf Priority - HP 5920 series Configuration Manual

recommends that you increase the FKA advertisement period to a value between 60 and 90
seconds to avoid service interruption if there are many configurations on the switch. For more
information about ISSU, see Fundamentals Configuration Guide.
• Use values greater than 90 in the case of an ISSU reboot on a switch operating in standalone mode
or in IRF mode but without subordinate switches. In this case, the switch cannot send unsolicited
Discovery Advertisements or keepalive frames for a period of time. To prevent the peer from
deleting the virtual link for failing to receive an unsolicited Discovery Advertisement and avoid
service interruption, HP recommends that you set the FKA advertisement period to a value between
300 and 600 seconds.
To ensure service continuity during an active/standby switchover or ISSU reboot on an NPV switch,
•
you must also adjust the FKA advertisement period value on the upstream FCF switch. This is
because the FKA advertisement period value configured on the NPV switch affects only its VFC
interfaces in F mode and connected ENodes, and its VFC interfaces in NP mode use the FKA
advertisement period value learned from the upstream FCF switch.
FCoE traffic will be interrupted during an ISSU reboot on an access FCF switch or NPV switch operating
in standalone mode or in IRF mode but without subordinate switches. This is because an access FCF
switch or NPV switch will connect to servers, storage devices, or other vendor's switches and its FKA
advertisement period cannot be longer than 90 seconds. An ISSU reboot on a switch operating in
standalone mode or in IRF mode but without subordinate switches takes a longer time than 225 (2.5*90)
seconds. Therefore, FCoE traffic will be interrupted during the ISSU reboot because the virtual link is
deleted after the peer fails to receive an unsolicited Discovery Advertisement within 225 seconds.
To configure an FKA advertisement period value:
Step
1. Enter system view.
2. Configure an FKA
advertisement period
value.

Configuring the FCF priority

The FCF priority includes the VFC interface FCF priority and the system FCF priority, which are used in the
following scenarios:
The VFC interface FCF priority is used in the fcf priority field in an unsolicited Discovery
•
Advertisement.
The system FCF priority is used in the fcf priority field in a solicited Discovery Advertisement.
•
An ENode selects the FCF switch with the highest priority from the FCF switches sending Discovery
Advertisements and sends a FLOGI request to it for login.
The FCF priority is effective only on a VFC interface connected to an ENode (VFC interface in F mode).

Configuring the system FCF priority

Step
1. Enter system view.
Command
system-view
fcoe fka-adv-period
fka-adv-period
Command
system-view
15
Remarks
N/A
The default setting is 8 seconds.
Remarks
N/A