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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Ethernet Virtual Connection Bridge Domain
Ethernet Data Plane Loopback
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Verifying the Ethernet Data Plane Loopback Configuration
Use the
show ethernet loopback permitted
command to display all the permitted interfaces which run
Ethernet Data Plane Loopback sessions:
router#
show ethernet loopback permitted
Interface Direction
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GigabitEthernet0/0/0/0 External
GigabitEthernet0/0/0/1.100 Internal
GigabitEthernet 0/1.200 External, Internal
Use the
show ethernet loopback active
command to view active sessions:
Router# s
how ethernet loopback active interface GigabitEthernet 0/1.200
Local: GigabitEthernet0/1.200, ID 1
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Direction: Internal
Time out: 2 hours
Time left: 00:01:17
Status: Active
Filters:
Dot1ad: 100-200
Dot1q: Any
Source MAC Address: aaaa.bbbb.cccc
Destination MAC Address: Any
Ethertype: 0x8902
Class of Service: Any
LLC-OUI: Any
Local: GigabitEthernet0/1.200, ID 2
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Direction: External
Time out: 10 minutes
Time left: 00:00:00
Status: Stopping
Filters:
Dot1q: 500
Second-dot1q: 200
Source MAC Address: Any
Destination MAC Address: Any
Ethertype: Any
Class of Service: 4
LLC-OUI: Any
For each loopback session listed, this information is displayed:
•
Header containing the Interface name and session ID, which uniquely identify the local loopback
session,
•
Direction which specifies the direction of the loopback,
•
Time out – the time out period specified when the loopback was started,
•
Time left – the amount of time left until the loopback session is automatically stopped,
•
Status – the status of the loopback session,
•
Filters – details of the filters specified when the loopback session was started. Similar to the start
CLI, only the filters supported by the platform are displayed.