Specifications

show controllers vsi session
MP-441
Cisco IOS Multiprotocol Label Switching Command Reference
January 2010
Table 19 describes the significant fields shown in the display.
Ta b l e 19 show controllers vsi session Field Descriptions
Field Description
Interface Name of the control interface on which this session is configured.
Session number A number from 0 to <n–1
>, where n is the number of slaves. Configured on
the MPLS LSC with the slaves option of the tag-control-protocol vsi
command.
VCD Virtual circuit descriptor (virtual circuit number). Identifies the VC that
c
arries VSI protocol messages for this session.
VPI/VCI Virtual path identifier or v
irtual channel identifier for the VC used for this
session.
Switch type Switch device (for example, the BPX).
Switch id Switch identifier (supplied by the switch).
Controller id Controller identifier. Configured on the LSC, and on the switch, with the id
opt
ion of the tag-control-protocol vsi command.
Slave id Slave identifier (supplied by the switch).
Keepalive timer VSI master keepalive timeout period (in seconds). Configured on the MPLS
L
SC through the keepalive option of the tag-control-protocol-vsi
command. If no valid message is received by the MPLS LSC within this
time period, it sends a keepalive message to the slave.
Powerup session id Session ID (supplied by the slave) used at powerup time.
Cfg/act retry timer Configured and actual message retry timeout period (in seconds). If no
r
esponse is received for a command sent by the master within the actual
retry timeout period, the message is re-sent. This applies to most message
transmissions. The configured retry timeout value is specified through the
retry option of the tag-control-protocol vsi command. The actual retry
timeout value is the larger of the configured value and the minimum retry
timeout value permitted by the switch.
Active session id Session ID (supplied by the slave) for the currently active session.
Max retries Maximum number of times that a particular command transmission will be
r
etried by the master. That is, a message may be sent up to <max_retries+1>
times. Configured on the MPLS LSC through the retry option of the
tag-control-protocol vsi command.
Ctrl port log intf Logical interface identifier for the control port, as supplied by the switch.
Trap window Maximum number of outstanding trap messages permitted by the master.
T
his is advertised, but not enforced, by the LSC.
Max/actual cmd wndw Maximum command window is the maximum number of outstanding (that
i
s, unacknowledged) commands that may be sent by the master before
waiting for acknowledgments. This number is communicated to the master
by the slave.
The command window is the maximum number of outstanding commands
t
hat are permitted by the master, before it waits for acknowledgments. This
is always less than the maximum command window.
Trap filter This is always “all” for the LSC, indicating that it wants to receive all traps
f
rom the slave. This is communicated to the slave by the master.