Alcatel-Lucent 6850-48 Reference Guide

Interswitch Protocol Commands

OmniSwitch CLI Reference Guide

page 13-5

Sets the common phase transmission time interval. In the common transmission state, an active port sends 
AMAP Hello packets to determine adjacent switch failures and disconnects. The common transmission 
time specifies the number of seconds to wait between each Hello packet transmission.

amap common [time] seconds

Common transmission time value in seconds (1–65535). Do not use 
commas in the value.

By default, the common transmission time is set to 300 seconds.

OmniSwitch 6400, 6850, 6855, 9000, 9000E

• Use of the time command keyword is optional.

• To avoid synchronization with adjacent switches, the common transmission time is jittered randomly 

by plus or minus ten percent. For example, if the default time is used (300 seconds), the jitter is plus or 
minus 30 seconds.

• The common transmission time value is only used by ports in the common transmission state.

• If a Hello packet is received from an adjacent switch before the common transmission time has 

expired, the switch sends a Hello reply and restarts the common transmission timer.

• A port reverts to the discovery transmission state if a Hello response is not received after the discovery 

time interval (see 

) has expired.

-> amap common 1200

-> amap common time 600

Release 6.1; command was introduced.