AOS Release 6.4.6.R01 Release Notes November 2013
By default, route boundary configuration is supported for the scoped addresses (239.0.0.0 to
239.255.255.255). Use “debug ip set ipMRouteBoundaryXpand num” command to allow multicast
route boundary configuration on the complete multicast group range (224.0.0.0 to 239.255.255.255). You
are required to set the debug variable to non-zero value to allow expanded range of addresses to be
supported for route boundary configuration. Changing the variable value to ‘0’ sets the route boundary
configuration to its default, that is, route boundary support for only scoped multicast address range.
Configuring this feature is not standards compliant.
L2 star-G Mode for Multicast Group
When multiple hosts are a part of single multicast group, every host will have a unique entry in the IPMC
table. This increases the hardware entries in IPMC table and could affect other normal multicast services.
In such a scenario, configuring L2 star-G (*, G) mode for the multicast group reduces the IPMC index
utilization by preventing creation of multiple multicast entries. A single star-G entry for the multicast group
is created in the IPMC table.
This feature is supported both for IPv4 and IPv6 network.
Note: By default, 10 multicast groups can be configured in L2 star-G mode. This default number can be
changed by modifying the global variable ipms_maxgroup_starg by adding the following to the
AlcatelDebug.cfg file and rebooting the switch.
• debug set ipms_maxgroup_starg <num-groups>
Contact Service and Support before implementing the debug capability on an OmniSwitch.
QoS Features
Per port rate limiting
Port Group and Per Port Rate Limiting
Per port rate limiting allows configuring a policy rule that specifies a rate limiter for the group of ports
or individual port. This can be achieved by configuring specific mode for the port group. The following
two modes are supported:
• Non-split: This mode applies the rate limiting rule to a group of ports specified in the rule.
This is the default behavior for the source port group.
• Split: This mode applies the rate limiting rule to individual ports specified in the group of ports
in the rule.
Per port rate limiting is not supported for a destination port group.
Port Groups and Maximum Bandwidth
Maximum bandwidth policies are applied to source (ingress) ports and/or flows. This applies to flows
that involve more than one port. Based on the rate limit mode set on the port group, the maximum
bandwidth is applied.
OmniSwitch 6850E/6855/9000E------ Release 6.4.6.R01 Page 15 of 80
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