Technical information

AX Series L2 Loop Detection Configuration Guide (Edition 2)

Table 3.2-2 Device capacity limits for physical ports (AX6600S series)

NIF abbreviation Number of available physical ports

12 ports when in single active PSP mode NK1G-24T

All ports when in double active PSP mode

12 ports when in single active PSP mode NK1G-24S

All ports when in double active PSP mode

NK1GS-8M All ports

1 port when in single active PSP mode NK10G-4RX

2 ports when in double active PSP mode

#2, #3

1 port when in single active PSP mode NK10G-8RX

2 ports when in double active PSP mode

#3, #4

#1: If the number of physical ports exceeding the capacity limit is used and a high load of traffic flows continually or

temporarily, an L2 loop detection frame might be discarded. This might cause a delay in detection of a loop failure.

#2: Use port numbers 1-2 or 3-4.

#3: To ensure CSU redundancy, use no more than one physical port.

#4: Use port numbers 1-2, 3-4, 5-6, or 7-8.

Table 3.2-3 Device capacity limits for physical ports (AX6300S series)

NIF abbreviation Number of available physical ports

NH1G-16S 1 port per group of four ports starting from the top port, up to a maximum of 4 ports.

NH1G-24T Up to 12 ports

NH1G-24S Up to 12 ports

NH1G-48T 1 port per group of four ports starting from the top port, up to a maximum of 12 ports.

NH10G-1RX All ports

NH10G-4RX Only 1 port

NH10G-8RX Only 1 port

#1: If the number of physical ports exceeding the capacity limit is used and a high load of traffic flows continually or

temporarily, an L2 loop detection frame might be discarded. This might cause a delay in detection of a loop failure.

(2) Status display of the show loop-detection command

The show loop-detection command updates the displayed contents when the port link status changes.

For example, for a port that has once changed to the Down(loop) status due to the detection of a loop, the

status display remains until the port links up again even if it is activated after the loop status is removed.

However, while the port is set to be automatically activated after a certain period of time using the

loop-detection auto-restore-time command, the Down status is displayed if the L2 loop status is

removed with no link destination before the specified period of time has passed after L2 loop detection.