12
Usage guidelines
This command enables the source MEP to send LTMs when it fails to receive CCMs from the target
MEP within 3.5 times the sending interval. The destination of the LTMs is the target MEP, and the
TTL field value is 255. Based on the returned LTRs, the fault source can be located on the faulty link.
If you disable automatic LTM sending, the content stored in the buffer will be removed.
Examples
# Enable automatic LTM sending, and set the size of the buffer used to store the auto-detection
result to 100 (in terms of auto-detection times).
<Sysname> system-view
[Sysname] cfd linktrace auto-detection size 100
Related commands
cfd linktrace
display cfd linktrace-reply auto-detection
cfd loopback
Use
cfd loopback
to enable loopback (LB).
Syntax
cfd loopback service-instance instance-id mep mep-id
{
target-mac
mac-address
|
target-mep target-mep-id
}
[
number number
]
Views
Any view
Predefined user roles
network-admin
Parameters
service-instance instance-id
: Specifies a service instance by its ID in the range of 1 to
32767.
mep
mep-id
: Specifies the source MEP by its ID in the range of 1 to 8191.
target-mac mac-address
: Specifies the destination MAC address of the MP, in the format of
H-H-H.
target-mep target-mep-id
: Specifies the target MEP by its ID in the range of 1 to 8191.
number number
: Specifies the number of the sent LBMs packets. The value is in the range of 1 to
10. The default value is 5.
Usage guidelines
The LB function verifies link connectivity between the source MEP and the target MP by using LBMs
and LBRs.
Examples
# Enable LB for the link between MEP 1101 and MEP 2001 in service instance 1 (assume that the
link status is normal).
<Sysname> cfd loopback service-instance 1 mep 1101 target-mep 2001
Loopback to MEP 2001 with the sequence number start from 1101-43404:
Reply from 0010-fc00-6512: sequence number=1101-43404 Time=5ms
Reply from 0010-fc00-6512: sequence number=1101-43405 Time=5ms
Содержание SOHO IE4300
Страница 114: ...ii tftp client ipv6 source 41 tftp client source 41 tftp ipv6 42 tftp server acl 44 tftp server ipv6 acl 44...
Страница 285: ...i Contents Tcl commands 1 cli 1 tclquit 1 tclsh 2...
Страница 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Страница 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
Страница 323: ...25 Sysname Ten GigabitEthernet1 0 51 undo shutdown Related commands irf port...
Страница 396: ...i Contents Bulk interface configuration commands 1 display interface range 1 interface range 1 interface range name 3...
Страница 460: ...i Contents Port isolation commands 1 display port isolate group 1 port isolate enable 2 port isolate group 2...
Страница 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
Страница 589: ...60 Examples Enable LLDP for automatic IP phone discovery Sysname system view Sysname voice vlan track lldp...
Страница 602: ...12 Related commands display mvrp statistics...
Страница 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
Страница 678: ...9 Related commands reset pppoe relay statistics...
Страница 846: ...i Contents Basic IP forwarding commands 1 display fib 1 ip forwarding table save 2...
Страница 1073: ...i Contents HTTP redirect commands 1 http redirect https port 1 http redirect ssl server policy 1...
Страница 1087: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1340: ...9 Sysname ipv6 route static default preference 120 Related commands display ipv6 routing table protocol...
Страница 1649: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1668: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
Страница 2026: ...34 Related commands display mac authentication...
Страница 2028: ...ii...
Страница 2143: ...i Contents User profile commands 1 display user profile 1 user profile 2...
Страница 2308: ...61 ipsec transform set...
Страница 2473: ...i Contents TCP attack prevention commands 1 tcp anti naptha enable 1 tcp check state interval 1 tcp state 2...
Страница 2531: ...i Contents SAVI commands 1 ipv6 savi down delay 1 ipv6 savi log enable 1 ipv6 savi strict 2...
Страница 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Страница 2541: ...i Contents Crypto engine commands 1 display crypto engine 1 display crypto engine statistics 1 reset crypto engine statistics 3...
Страница 2545: ...i Contents FIPS commands 1 display crypto version 1 display fips status 1 fips mode enable 2 fips self test 4...
Страница 2791: ...14 Sysname track 1 Related commands delay display track...
Страница 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
Страница 2967: ...27 Related commands apply poe profile poe enable poe max power interface view poe priority...
Страница 3240: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...
Страница 3263: ...Documentation feedback You can e mail your comments about product documentation to info h3c com We appreciate your comments...