HP 7500/E7900 Switches and Fabric Modules - 7500-CMW520-R6708 Release Notes
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3. The hp 7500 product family supports four IRF members in R6635. There are several setup and
configuration limitation, please check the Command Line Manual and Operation Manual of new
release for detail.
4. If you enable multicast ARP and connect the device to an NLB server through an aggregate
interface, any port that receives client traffic must not reside on the same card as any member port
of the aggregate interface.
Open problems and workarounds
LSD68672
Symptom: The IRF fabric may split.
Condition: Reboot an IRF fabric comprised of four switches. If the switches are not synchronously
rebooted.
Workaround: Make sure the switches have similar card configurations, can back up each other,
and are rebooted at the same time. If the IRF fabric splits, reboot the smallest IRF system so the
switches can join the system to re-form a 4-chassis fabric.
LSD62272
Symptom: RRPP fails to operate.
Condition: If the RRPP control VLAN ID is identical with the subinterface VLAN ID.
Workaround: Do not configure the same VLAN ID for them.
LSD62435
Symptom: A subinterface fails to forward traffic to another chassis.
Condition: If the VLAN ID of subinterface is identical with the MAD VLAN ID.
Workaround: Do not configure the same VLAN ID for them.
List of resolved problems
Resolved problems in R6708
Symptom: If the OSPF LSDB has multiple Type 5 LSAs that describe default routes, the system
prompts an error syslog "The default route has been changed or deleted, protocol is OSPF" during
OSPF route calculation.
Condition: This symptom occurs if the OSPF LSDB has multiple Type 5 LSAs that describe default
routes.
LSD073419
Symptom: When many ARP and MAC moves occur on ports or VPNs, ARP might occupy the CPU
for a long time, and do not answer ARP requests.
Condition: This symptom might be seen when many ARP and MAC moves occur on ports or VPNs.
LSD074037
Symptom: PBR fails to work when a packet matches two entries in the PBR policy.