D-Link xStack DES-3528 Series

xStack® DES-3528/DES-3552 Series Layer 2 Managed Stackable Fast Ethernet Switch CLI Reference Guide
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config cfm ccm_fwd
Purpose
Used to configure CCM PDUs forwarding mode.
Syntax config cfm ccm_fwd [software | hardware]
Description
This command is for test purposes. For ordinary user, it is not suggested to use this
command.
By default, the CCM message is handled and forwarded by software. The software can
handle the packet based on behaviour defined by the standard. Under a strict environment,
there may be substantial amount of CCM packets, and it will consume substantial amount of
CPU resource. To meet the performance requirement, the handling of CCM can be changed
to hardware mode. This function is especially useful for domain’s intermediate device since
they only have MIPS. Note that this command can only be used under assistance of
technical personnel.
Parameters software – Specifies to forward by software.
hardware – Specifies to forward by hardware.
Restrictions
Only Administrator and Operator and Power-User-level users can issue this command.
Example usage:
To configure the cfm ccm forwarding mode:
DES-3528:admin# config cfm ccm_fwd hardware
Command: config cfm ccm_fwd hardware
Success.
DES-3528:admin#
cfm loopback
Purpose
Used to transmit a CFM loopback message.
Syntax cfm loopback <macaddr> [mepname <string 32> | mepid <int 1-8191> md <string 22>
ma <string 22>] {num <int 1-65535> | [length <int 0-1500> | pattern <string 1500>] |
pdu_priority <int 0-7>}
Description
The MAC address represents that the destination MEP or MIP which can be reached by this
MAC address. The MEP represents the source MEP to initiate the loop-back message. You
can press Ctrl+C to exit loop-back test.
Parameters <macaddr> –Specifies the destination MAC address.
mepname – Specifies the MEP name.
mepid – Specifies the MEP MEPID.
md – Specifies the maintenance domain name.
ma – Specifies the maintenance association name.
num – Specifies the number of LBMs to be sent. The default value is 4.
length – Specifies the payload length of LBM to be sent. The default is 0.
pattern – Specifies an arbitrary amount of data to be included in a Data TLV, along with an
indication of whether the Data TLV is to be included.
pdu_priority – The 802.1p priority to be set in the transmitted LBMs. If not specified, it uses
the same priority as CCMs and LTMs sent by the MA.
Restrictions
None.
Example usage:
To configure cfm loop-back:
DES-3528:admin# cfm loopback 00-01-02-03-04-05 mepname mep1
Command: cfm loopback 00-01-02-03-04-05 mepname mep1
Request timed out.
Request timed out.
Reply from MPID 52: bytes=xxx time=xxxms