Technical data

46 Known limitations and considerations in this release
217316-A Rev 00
SMLT limitations
• Multicast routing with PIM and DVMRP enabled is not supported on the edge
switch of a Triangle SMLT configuration. In addition, IP multicast routing is
not supported on SMLT square and cross configurations. However, IGMP
snooping is supported and queries for a given VLAN must be placed on one
switch only. (Q00072438)
• End-to-end multicast traffic stops after reconnecting the broken half of a
square/cross SMLT. (Q00075866)
Layer 3
IP limitations
ARP
• If an MLT port with an associated static ARP is moved out of the MLT, the
static ARP does not remain with the MLT, but is moved out with the port.
(Q00647998-02)
BGP
• Nortel Networks recommends using an 8691SF or an 8692SF in a BGP
configuration.
• BGP is not supported in HA Layer 3 mode.
• The FlapPenalty value does not get refreshed in a BGP route dampened
window. (Q00804187)
• The Remain field is not visible from the BGP dampened Routes window in
JDM. There is currently no MIB support for this parameter. (Q00804182)
• The BGP CLI command
config ip bgp redistribute direct is not
in compliance with the CLI nomenclature and should be
config ip bgp
redistribute
local. (Q00528995)
• Disabling BGP does not remove redistributed BGP routes in the OSPF LSDB.
Routers running OSPF continue to receive the redistributed BGP routes. To
exit this condition, either reset OSPF or reset the OSPF redistribution with
BGP disabled. (Q00683022)