R211x-HP Flexfabric 11900 FCoE Configuration Guide

17
Table 2 Recommended values for different application scenarios
Recommended
value
Application scenarios Remarks
Less than 90
seconds
Connected to servers, storage
devices, or third-party switches.
According to FC-BB-5, the upper limit of the FKA
advertisement period value is 90 seconds. In this
scenario, a single-MPU FCF switch or NPV switch will
experience FCoE traffic disruption during an ISSU
reboot, because this ISSU reboot takes more than 225
(2.5*90) seconds and the peer deletes the virtual link for
failing to receive unsolicited Discovery Advertisements
within 225 seconds.
To ensure service continuity during an active/standby
switchover on an NPV switch or ISSU reboot on a
dual-MPU 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.
60–90 seconds
Active/standby switchover on
the switch takes more than 2.5 x
60 seconds because of the
amount of FCoE configuration.
ISSU reboot on a dual-MPU
switch takes more than 2.5 x 60
seconds because of the amount
of FCoE configuration.
For more information about ISSU, see Fundamentals
Configuration Guide.
300–600
seconds
ISSU reboot on a single-MPU
switch and connecting to no
nodes.
During such an ISSU reboot, the switch cannot send
unsolicited Discovery Advertisements or keepalive
frames.
To configure an FKA advertisement period value:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Configure an FKA
advertisement period
value.
fcoe fka-adv-period
fka-adv-period
The default setting is 8 seconds.
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.