Configuring Fragmentation - Avaya G250 Administration Manual

Configuring the router
Table 137: VRRP CLI commands (continued)
Root level
command
router vrrp
show ip vrrp

Configuring fragmentation

The G250/G350 supports IP fragmentation and reassembly. The G250/G350 router can
fragment and reassemble IP packets according to RFC 791. This feature allows the router to
send and receive large IP packets where the underlying data link protocol constrains the
Maximum Transport Unit (MTU).
IP fragmentation involves breaking a datagram into a number of pieces that can be
reassembled later. The IP source, destination, identification, total length, and fragment offset
fields, along with the more fragment and don't fragment flags in the IP header, are used for IP
fragmentation and reassembly.
IP fragmentation works as follows:
Each IP packet is divided into fragments
●
Each fragment becomes its own IP packet
●
Each packet has same identifier, source, and destination address
●
Fragments are usually not reassembled until final destination. The G250/G350 supports
fragmentation of IP packets according to RFC 791, and reassembly of IP packets destined only
to its interfaces.
546 Administration for the Avaya G250 and Avaya G350 Media Gateways
Command
ip vrrp primary
ip vrrp priority
ip vrrp timer
Description
Set the primary address used as the source
address of VRRP packets for the virtual router
ID
Set the virtual router priority value used when
selecting a master router
Set the virtual router advertisement timer value
for the virtual router ID
Enable or disable VRRP routing globally
Display VRRP information
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