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График работы - право, по ул. График работы: с дверь с вывеской. График работы: с пн-сб - с до 16. Большевиков цокольный этаж, ТЦ Нарва тел.
Displays all the debugging information about the Ethernet data plane loopback configuration. Use the show ethernet cfm domain command to view details about CFM maintenance domains:. Use the show ethernet cfm maintenance-points local command to view the MEPs that are configured locally on a router.
The following is a sample output of the show ethernet cfm maintenance-points local command:. Use the show ethernet cfm maintenance-points remote command to display information about remote maintenance point domains or levels. In the following example, carrier, Provider, and customer are the maintenance point domains that are configured:. Use the show ethernet cfm maintenance-points remote command to view the details of a remote maintenance point domain:.
Use the traceroute command to send the Ethernet CFM traceroute messages:. Use the show ethernet cfm domain command to display the maintenance point domains configured in the network. In the following example, the customer, enterprise, and carrier maintenance point domains are configured. Use the show ethernet cfm maintenance-points local command to view the local MEPs. Use the show ethernet cfm error configuration command to view Ethernet CFM configuration errors if any.
The following is a sample output of the show ethernet cfm error configuration command:. MPID —Specifies the maintenance endpoint identifier. Use the second-dot1q keyword and the inner vlan-id argument to specify the VLAN tag. Use the show ethernet cfm maintenance-points remote command to display the remote maintenance point domains.
In the following example, customer, carrier, and enterprise are the maintenance point domains that are configured:. Use the ping command to verify if Ethernet CFM loopback messages are successfully sent and received between the routers:. Table 1 lists the debug commands to troubleshoot issues pertaining to the Ethernet CFM configuration.
Enables low-level diagnostic debugging of Ethernet CFM general events or packet-related events. Ethernet frame delay measurement is used to measure frame delay and frame delay variations. Follow the guidelines and restrictions listed here when you configure two-way delay measurement:.
The following steps show how to configure two-way delay measurement. Both single and double tagging methods are included in the steps listed below. Do one of the following: ethernet y delay DMM domain value vlan vlan-id mpid value cos value source mpid value ethernet y delay DMM domain value vlan vlan-id inner-vlan inner vlan-id mpid value cos value source mpid value.
Configures the Y. Table 1 lists the debug commands to troubleshoot issues pertaining to the two-way delay measurement configuration. Skip to content Skip to search Skip to footer. Book Contents Book Contents.
Find Matches in This Book. Log in to Save Content. PDF - Complete Book 6. Updated: May 3, This feature is supported only if you have purchased the advipservices licensing module. Enables the privileged EXEC mode. Enter your password when prompted. Specifies an interface and enters the interface configuration mode. Defines the encapsulation format as IEEE Sets the Layer 2 class of service CoS value to an outgoing packet end.
Before you run any of the debug commands listed in the following table, ensure that you run the logging buffered debugging command, and then turn off console debug logging using the no logging console command. Enables debugging of configuration-related issues. Enables debugging of packet processing VLAN tag push on the egress side. Enables debugging of packet processing VLAN tag pop on the ingress side. Step 1. Step 2. Specifies the subinterface and enters the subinterface configuration mode.
Do one of the following: encapsulation dot1q vlan-id encapsulation dot1q vlan-id second-dot1q inner vlan-id Example: Router config-subif encapsulation dot1q or Example: Router config-subif encapsulation dot1q second-dot1q Configures Ethernet external loopback on the subinterface. Step 7. Starts Ethernet external loopback on a subinterface. Let's shut down the ATM interface at the other router ltb.
Note: The loopback command must be configured on a main interface, not on a subinterface. The loopback line command under an ATM interface of a Cisco router causes incoming traffic to be sent back to the network. See Figure 2 and Example 2 below. Note: ATM packets debugging is on and ping from router ltb to router ltb. You can see that the tests are done again from the where we removed the initial loopback.
This is normal since the Loopback Line allows us to see if the Telco's network is working properly. Note: Ping from the router ltb. The ping will fail as expected, but the traffic is looped back towards router ltb from the network, and the ATM debug shows the traffic going out O and then coming back in I. We ran the tests in this document in the usual way: pinging the other side.
If you use the right mapping, or if you use a point-to-point sub-interface, the user could ping his own IP address. Therefore, the ICMP echo would definitely be sent on the interface and would be answered by the router. In other words, in a live environment, you can run the same tests without any debugging enabled. You can simply check if you can ping your own IP address and see if the test succeeds.