HP A5120 EI - CFD Configuration Example

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To do...
Use the command...
Remarks
Display the TST result on the
specified MEP
display cfd tst [ service-instance instance-id
[ mep mep-id ] ] [ | { begin | exclude |
include } regular-expression ]
Available in any view
Clear the one-way DM result on
the specified MEP
reset cfd dm one-way history [ service-
instance instance-id [ mep mep-id ] ]
Available in user view
Clear the TST result on the
specified MEP
reset cfd tst [ service-instance instance-id [
mep mep-id ] ]
Available in user view
CFD configuration example
Network requirements
As shown in Figure 8:
 The network comprises five devices and is divided into two MDs: MD_A (level 5) and MD_B (level
3). All ports belong to VLAN 100, and the MAs in the two MDs all serve VLAN 100.
 MD_A has three edge ports: GigabitEthernet 1/0/1 on Device A, GigabitEthernet 1/0/3 on
Device D, and GigabitEthernet 1/0/4 on Device E, and they are all inward-facing MEPs. MD_B has
two edge ports: GigabitEthernet 1/0/3 on Device B and GigabitEthernet 1/0/1 on Device D, and
they are both outward-facing MEPs.
 In MD_A, Device B is designed to have MIPs when its port is configured with low level MEPs. Port
GigabitEthernet 1/0/3 is configured with MEPs of MD_B, and the MIPs of MD_A can be configured
on this port. You should configure the MIP generation rule of MD_A as explicit.
 The MIPs of MD_B are designed on Device C, and are configured on all ports. You should configure
the MIP generation rule as default.
 Configure CC to monitor the connectivity among all the MEPs in MD_A and MD_B. Configure to use
LB to locate link faults, and use the AIS function to suppress the error alarms reported.
 After the status information of the entire network is obtained, use LT, LM, one-way DM, two-way DM,
and TST to detect link faults.
Figure 8 Network diagram for CFD configuration
GE1/0/2
GE1/0/1 GE1/0/3
GE1/0/4
Device A
GE1/0/2
GE1/0/1 GE1/0/3
GE1/0/4
Device B
GE1/0/2
GE1/0/1 GE1/0/3
GE1/0/4
Device C
GE1/0/2
GE1/0/1 GE1/0/3
GE1/0/4
Device D
GE1/0/2
GE1/0/1 GE1/0/3
GE1/0/4
Device E
MD_A
MD_B
VLAN 100
Port Inward-facing MEP Outward-facing MEP
MIP with explicit rule MIP with default rule