
C
HAPTER
42
| CFM Commands
Link Trace Operations
– 1379 –
ethernet cfm
linktrace
This command sends CFM link trace messages to the MAC address of a
remote MEP.
S
YNTAX
ethernet
cfm
linktrace
{
dest-mep
destination
-
mpid
|
src-mep
source
-
mpid
{
dest-mep
destination
-
mpid
|
mac-address
}
|
mac-address
}
md
domain-name
ma
ma-name
[
ttl
numbe
r]
destination
-
mpid –
The
identifier of a remote MEP that is the target
of the link trace message. (Range: 1-8191)
source
-
mpid –
The
identifier of a source MEP that will send the link
trace message. (Range: 1-8191)
mac-address
– MAC address of a remote MEP that is the target of
the link trace message. This address can be entered in either of the
following formats: xx-xx-xx-xx-xx-xx or xxxxxxxxxxxx
domain-name –
Domain name. (Range: 1-43 alphanumeric
characters)
ma-name –
Maintenance association name. (Range: 1-43
alphanumeric characters)
number –
The time to live of the linktrace message. (Range: 1-255
hops)
D
EFAULT
S
ETTING
None
C
OMMAND
M
ODE
Privileged Exec
C
OMMAND
U
SAGE
◆
Link trace messages can be targeted to MEPs, not MIPs. Before sending
a link trace message, be sure you have configured the target MEP for
the specified MA.
◆
If the MAC address of target MEP has not been learned by any local
MEP, then the linktrace may fail. Use the
maintenance-points remote crosscheck
command to verify that a MAC
address has been learned for the target MEP.
◆
Link trace messages (LTMs) are sent as multicast CFM frames, and
forwarded from MIP to MIP, with each MIP generating a link trace reply,
up to the point at which the LTM reaches its destination or can no
longer be forwarded.
◆
Link trace messages are used to isolate faults. However, this task can
be difficult in an Ethernet environment, since each node is connected
through multipoint links. Fault isolation is even more challenging since
the MAC address of the target node can age out in several minutes.
This can cause the traced path to vary over time, or connectivity lost if
faults cause the target MEP to be isolated from other MEPs in an MA.
Содержание ECS4110-28T
Страница 1: ...Management Guide www edge core com ECS4110 28T 28P 52T 52P 28 52 Port Gigabit Ethernet Layer 2 Switch...
Страница 2: ......
Страница 4: ......
Страница 63: ...FIGURES 63 Figure 428 Configuring VLAN Translation 1177...
Страница 64: ...FIGURES 64...
Страница 72: ...TABLES 72...
Страница 74: ...SECTION I Getting Started 74...
Страница 102: ...SECTION II Web Configuration 102 General IP Routing on page 679...
Страница 154: ...CHAPTER 4 Basic Management Tasks Resetting the System 154...
Страница 198: ...CHAPTER 5 Interface Configuration VLAN Trunking 198 Figure 65 Configuring VLAN Trunking...
Страница 272: ...CHAPTER 9 Congestion Control Automatic Traffic Control 272...
Страница 286: ...CHAPTER 10 Class of Service Layer 3 4 Priority Settings 286...
Страница 420: ...CHAPTER 13 Security Measures DHCP Snooping 420...
Страница 566: ...CHAPTER 14 Basic Administration Protocols OAM Configuration 566...
Страница 638: ...CHAPTER 15 Multicast Filtering Multicast VLAN Registration for IPv6 638...
Страница 662: ...CHAPTER 16 IP Configuration Setting the Switch s IP Address IP Version 6 662...
Страница 678: ...CHAPTER 17 IP Services Configuring the PPPoE Intermediate Agent 678...
Страница 792: ...CHAPTER 21 System Management Commands Switch Clustering 792...
Страница 822: ...CHAPTER 23 Remote Monitoring Commands 822...
Страница 888: ...CHAPTER 24 Authentication Commands PPPoE Intermediate Agent 888...
Страница 968: ...CHAPTER 25 General Security Measures Port based Traffic Segmentation 968...
Страница 994: ...CHAPTER 26 Access Control Lists ACL Information 994...
Страница 1034: ...CHAPTER 28 Link Aggregation Commands Trunk Status Display Commands 1034...
Страница 1044: ...CHAPTER 29 Power over Ethernet Commands 1044...
Страница 1084: ...CHAPTER 33 UniDirectional Link Detection Commands 1084...
Страница 1090: ...CHAPTER 34 Address Table Commands 1090...
Страница 1194: ...CHAPTER 37 VLAN Commands Configuring Voice VLANs 1194...
Страница 1388: ...CHAPTER 42 CFM Commands Delay Measure Operations 1388...
Страница 1410: ...CHAPTER 44 Domain Name Service Commands 1410...
Страница 1420: ...CHAPTER 45 DHCP Commands DHCP Relay 1420...
Страница 1472: ...CHAPTER 46 IP Routing Commands IPv4 Commands 1472...
Страница 1474: ...SECTION IV Appendices 1474...
Страница 1502: ...COMMAND LIST 1502...
Страница 1513: ......
Страница 1514: ...ECS4110 28T ECS4110 28P ECS4110 52T ECS4110 52P E072014 ST R02 150200000929A...