Avaya X330WAN manual Fragmentation and Reassembly

Enhanced Routing Capabilities

Fragmentation and Reassembly

X330WAN supports fragmentation of IP packets according to RFC 791, and reassembly of IP packets destined only to its interfaces.

Reassembly is associated with the following user-configurable parameters:

•Fragment Size - The maximum number of concurrently reassembled packets: Range: 0-200; Default=100.

•Fragment Timeout - The maximum time, in seconds, to wait for a packet to be reassembled:

Range: 5-120; Default=10.

•Fragment Chain - The maximum number of fragments allowed per packet: Range: 2-2048; Default=64.

To configure reassembly, use the following commands:

•fragment size Sets the maximum number of fragmented IP packets destined to the router that can be reassembled concurrently.

•fragment chain Sets the maximum number of fragments that can comprise a single IP packet destined to the router.

•fragment timeout Sets the maximum number of seconds to reassemble a fragmented IP packet destined to the router.

•clear fragment Sets the reassembly parameters to their defaults, as well

as clears the reassembly database.

•show fragment Displays information regarding fragmented IP packets destined to the router (the status of the reassembly operation).

Configuring X330WAN to Connect Branch Offices to Headquarters

Many businesses have a centralized location for their headquarters and small branch offices. It is important that communication between the headquarters and the branches flows quickly. The following figure shows a typical configuration of the network connecting the headquarters with branch offices.

Note: The following example uses sample IP addresses for illustration only.

Avaya X330WAN User’s Guide 39