HP 3500YL - Manual (Page 377)

Virtual Router Redundancy Protocol (VRRP)
Operating Notes
Dynamic Priority Change Operating Notes
■ There are no backward compatibility issues with the VRRP dynamic
priority change feature. If a VRRP router has an older firmware
version that does not have the dynamic priority change feature, it will
not have the needed configuration options.
■ The VR’s operating VLAN can’t be configured as a tracking VLAN for
that VR.
■ Ports that are part of a trunk can’t be tracked.
■ A port that is tracked can’t be included in a trunk.
■ Trunks that are tracked can’t be removed; you are not able to remove
the last port from the trunk.
■ LACP (active or passive) cannot be enabled on a port that is being
tracked.
■ If a VLAN is removed or a port becomes unavailable, the configuration
is retained and they are tracked when they become available again.
■ After the Owner VR relinquishes control of its IP address, that IP
address becomes unavailable to all other applications and routing
protocols such as RIP and OSPF.
■ To avoid operational issues, it is recommended that VRRP is not run
on the same interface/VLAN with other routing protocols, such as RIP
and OSPF.
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