Specifications

Features in 291-15 26
Version 291-18
C613-10488-00 REV Q
Features in 291-15
Software Maintenance Version 291-15 includes the resolved issues and enhancements in the following tables. In the tables, for each product series:
■ “Y” indicates that the resolution is available in Version 291-15 for that product series.
■ “–” indicates that the issue did not apply to that product series.
Level 1
No level 1 issues.
Level 2
CR Module Level Description
AR44x / AR450 AR7x5 AR750S / AR770S Rapier i Rapier w AT-8800 AT-8600 AT-8700XL AT-8948 / x900-48 AT-9900 AT-9800
CR00020914 DVMRP 2 When using DVMRP for multicast traffic, if the router or switch received a
leave request from the last remaining client in a multicast group before it
could fully establish the DVMRP session for that group, the router or switch
would not send a prune message to the upstream router and would
continue to receive multicast traffic for that group. This issue has been
resolved.
YYYYYY––YYY
CR00021146 EPSR 2 Previously, it was possible for non-EPSR messages such as IGMP snooping
query solicitation messages to be sent on the EPSR control VLAN if the
control VLAN was part of an STP topology. Since the control VLAN is
designed as an intentional loop so that the master node can monitor the
integrity of the loop, other messages on the control VLAN can form a
packet storm.
This issue has been resolved. All switches in an EPSR ring now discard all
non-EPSR messages on the control VLAN.
––––––––YY–