loopback
Trigger the loopback test. The LBM packet is often compared to ping. A MEP transmits the
loopback message to an intermediate or endpoint within a domain for the purpose of fault
verification. This can be used to check the ability of the network to forward different
sized frames.
Command Parameters
- <0x00:0x00:0x00:0x00:0x00:0x00>
- Specifies the remote MAC address
to reach the MEP/MIP.
- <1-8191>
- Specifies the MEP ID.
- burst-count <1-200>
- Specifies the burst count.
- data-tlv-size <0-400>
- Specifies the data
Type-Length-Value (TLV) size.
- frame-size <64-1500>
- Specifies the frame size. The
default is 0.
- interframe-interval <0-1000>
- Specifies the interval between LBM
frames in msecs. A value of 0 msecs indicates to send the frames as fast as
possible. The default is 500.
- priority <0-7>
- Specifies the priority. The
default is 7.
- source-mode {nodal | noVlanMac|smltVirtual}
- Specifies the source mode as
nodal, noVlanMac, or smltVirtual. Use the smltVirtual value with B-VLANs only. Use
the noVlanMac value with C-VLANs only. The default is nodal.
- test-fill-pattern
{all-zero|all-zero-crc|pseudo-random-bit-sequence|pseudo-random-bit-sequence-crc}
- Specifies the testfill pattern:
all-zero: null signal without cyclic redundancy check; all-zero-crc: null signal
with cyclic redundancy check with 32-bit polynomial; pseudo-random-bit-sequence:
PRBS without cyclic redundancy check; or pseudo-random-bit-sequence-crc:
pseudo-random-bit-sequence with cyclic redundancy check with 32-bit polynomial. A
cyclic redundancy check is a code that detects errors. The default is
1:all-zero.
- time-out <1-10>
- Specifies the time-out interval in
seconds. The default is 3.
- WORD<1-22> WORD<1-22>
- The first parameter, specifies the
Maintenance domain name. The second parameter, specifies the Maintenance
association name.
Usage Guidelines
The source-mode noVlanMac
parameter only applies to VSP 4450
Series.
