92
MES1000, MES2000 Ethernet Switches
[
gigabitethernet
gi_port
|
fastethernet
fa_port
|
port-channel
group
]
fa_port: (1..3/0/1..24);
group: (1..8)
EXEC mode commands
Command line request in EXEC mode appears as follows:
console>
Table 5.76 —EXEC mode commands
Command
Value
Action
show gvrp configuration
[
gigabitethernet
gi_port
|
fastethernet
fa_port
|
port-channel
group
]
gi_port: (1..3/0/1..28);
fa_port: (1..3/0/1..24);
group: (1..8)
Show GVRP configuration for the selected interface or for all
interfaces.
show gvrp statistics
[
gigabitethernet
gi_port
|
fastethernet
fa_port
|
port-channel
group
]
Show collected GVRP statistics for the selected interface or
for all interfaces.
show gvrp error-statistics
[
gigabitethernet
gi_port
|
fastethernet
fa_port
|
port-channel
group
]
Show GVRP error statistics for the selected interface or for
all interfaces.
5.16.4
Loopback detection mechanism (loopback-detection)
This mechanism allows the device to detect loopback ports. Port loopback detection is performed
by sending frame with the destination address, matching one of the device MAC addresses.
Global configuration mode commands
Command line request in global configuration mode appears as follows:
console(config)#
Table 5.77 —Global configuration mode commands
Command
Value/Default value
Action
loopback-detection enable
-/disabled
Enable loopback detection mechanism for the switch.
no
loopback-detection
enable
Restore the default value.
loopback-detection
interval
seconds
(1..60)/30 seconds
Set the time interval between loopback frames.
-
seconds
—time interval between LBD frames.
no
loopback-detection
interval
Restore the default value.
loopback-detection mode
{src-mac-addr|base-mac-
addr}
-
Set loopback detection mode.
-
src-mac-addr
—
define that the destination MAC address is
the interface MAC address
-
base-mac-addr
—
define that the destination MAC address is
the device MAC address
loopback-detection
vlan-
based
- / disabled
Enables loopback detection mode for VLAN. If there is a loop
in VLAN, this VLAN will be blocked on port, on which the loop
is detected.
no
loopback-detection
vlan-based
Disables loopback detection mode for VLAN.
loopback-detection
vlan-
based recovery-time
(30..1000000) / disabled
Defines time in seconds, during which a VLAN will remain in
the blocked state on port.
no
loopback-detection
vlan-based recovery-time
VLAN on port, on which the loop is detected, will not be
unblocked automatically.