Allied Telesis AT-9800, RAPIER I, X900-48FE manual Disable ip macdisparity, Enable ip macdisparity

70 Internet Protocol (IP) Enhancements Release Note

For an example of how to use ARP entries with multicast MAC addresses, see Guideline to Windows 2003 Network Load Balancing Clustering with Allied Telesyn Switches. This is available from the Resource Center on your Documentation and Tools CD-ROM, or from: www.alliedtelesis.co.uk/en-gb/solutions/techdocs.asp?area=howto

Command Changes

The following table summarises the new and modified commands:

Command	Change
disable ip macdisparity	New command.
enable ip macdisparity	New command.
show ip	New IP/MAC address disparity parameter.

Enhanced Static ARP Entry Filtering on Ports within a

Trunk Group

This Software Version ensures that traffic flow is not interrupted when a port within a trunk group goes link-down.

In previous Software Versions, when a port that is part of a trunk group goes link-down, the router or switch drops any traffic that is forwarded by a static ARP entry out of that port.

In this Software Version, when a port that is part of a trunk group goes link-down, the router or switch modifies any static ARP entries defined to forward traffic out of that port. It modifies the egress port for the static ARP entry to a port which is link-up within the trunk group. This ensures that traffic can flow without interruption despite the original port going link-down.

Command Changes

This expansion does not affect any commands.

Software Version 2.8.1 C613-10477-00 REV B