160
Loop Recovery:
When the loop detection is enabled, the Switch will send one probe packets every
two seconds
and then listen this packet. If it receives the packet at the same port, the Switch will disable this
port. After the time period,
recovery time
,
the Switch will enable this port and do loop detection
again.
The Switch generates syslog, internal log messages as well as SNMP traps when it shuts down a
port via the loop detection feature.
6.9.1
CLI Configuration
Node
Command
Description
enable
show loop-detection
This command displays the current loop
detection configurations.
enable
configure terminal
This command changes the node to configure
node.
configure loop-detection (disable|enable) This command disables / enables the loop
detection on the switch.
configure loop-detection address
MACADDR
This command configures the destination
MAC for the loop detection special packets.
configure no loop-detection address
This command configures the destination
MAC to default (00:0b:04:AA:AA:AB).
configure interface IFNAME
This command enters the interface configure
node.
interface loop-detection (disable|enable) This command disables / enables the loop
detection on the port.
interface no shutdown
This command enables the port. It can
unblock port blocked by loop detection.
interface loop-detection recovery
(disable|enable)
This command enables / disables the recovery
function on the port.
interface loop-detection recovery time
<1-60>
This command configures the recovery period
time.
configure interface range
gigabitethernet1/0/PORTLISTS
This command enters the if-range configure
node.
if-range
loop-detection (disable|enable) This command disables / enables the loop
detection on the ports.
if-range
loop-detection recovery
(disable|enable)
This command enables / disables the recovery
function on the port.
if-range
loop-detection recovery time
<1-60>
This command configures the recovery period
time.
Example:
L2SWITCH(config)#loop-detection enable
L2SWITCH(config)#interface 1/0/1
L2SWITCH(config-if)#loop-detection enable
Summary of Contents for NGI-M08C4-L2
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