Extreme Networks ExtremeWare XOS Command Reference Manual page 538

ESRP Commands
• If you have an untagged master VLAN, you must specify an ESRP domain ID. The domain ID must
be identical on all switches participating in ESRP for that particular domain.
• If you have a tagged master VLAN, ESRP uses the 802.1Q tag (VLANid) of the master VLAN for the
ESRP domain ID. If you do not use the VLANid as the domain ID, you must specify a different
domain ID. As previously described, the domain ID must be identical on all switches participating in
ESRP for that particular domain.
Extreme Networks recommends that all switches participating in ESRP run the same version of
ExtremeWare XOS.
ExtremeWare XOS has two modes of ESRP operation: standard and extended. Select standard if your
network contains some switches running ExtremeWare, others running ExtremeWare XOS, and a
combination of those switches participating in ESRP. Standard ESRP is backward compatible with and
supports the ESRP functionality of ExtremeWare.
Select extended ESRP if your network contains switches running only ExtremeWare XOS. Extended
mode ESRP supports and is compatible with switches running ExtremeWare XOS. By default,
ExtremeWare XOS operates in extended mode.
Networks that contain switches running ExtremeWare with both ESRP and Extreme Loop Recovery
Protocol (ELRP) enabled and switches running ExtremeWare XOS 11.0 with ESRP enabled have been
extensively tested. ExtremeWare XOS does not implement ELRP but is compatible with the ELRP
mechanisms available in ExtremeWare.
538 ExtremeWare XOS 11.0 Command Reference Guide