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Junos® OS Ethernet Interfaces Configuration ... - Juniper Networks

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Junos ®<br />

<strong>OS</strong> 12.3 <strong>Ethernet</strong> <strong>Interfaces</strong> <strong>Configuration</strong> Guide<br />

• Support for the Y1731 <strong>Ethernet</strong> Delay measurement protocol.<br />

• Support for action profiles to bring the CE-facing logical interfaces down when loss of<br />

connectivity is detected.<br />

Figure 24: Layer 2 VPN Topology<br />

Level 0<br />

Level 7<br />

Level 6<br />

Level 0<br />

ge-1/1/1 Up MEP<br />

pseudowire<br />

Up MEP ge-1/0/1<br />

CE1 PE1<br />

PE2<br />

CE2<br />

Down MEP Down MEP ge-0/0/0 ge-2/0/0 Down MEP Down MEP<br />

ge-2/2/0<br />

ge-0/0/0<br />

To monitor the L2VPN circuit, a CFM up MEP (Level 6 in Figure 24 on page 224) can be<br />

configured on the CE-facing logical interfaces of provider edge routers PE1 and PE2. To<br />

monitor the CE-PE attachment circuit, a CFM down MEP can be configured on the<br />

customer logical interfaces of CE1-PE1 and CE2-PE2 (Level 0 in Figure 24 on page 224).<br />

Configuring CFM for CCC Encapsulated Packets<br />

224<br />

Related<br />

Documentation<br />

The only change from the existing CLI configuration is the introduction of a new command<br />

to create a MIP on the CE-facing interface of the PE router.<br />

•<br />

protocols {<br />

oam {<br />

ethernet {<br />

connectivity-fault-management {<br />

# Define a maintenance domains for each default level.<br />

#; These names are specified as DEFAULT_level_number<br />

maintenance-domain DEFAULT_x {<br />

# L2VPN CE interface<br />

interface (ge | xe)-fpc/pic/port.domain;<br />

}<br />

{<br />

level number;<br />

maintenance-association identifier {<br />

mep mep-id {<br />

direction (up | down);<br />

# L2 VPN CE interface on which encapsulation family CCC is configured.<br />

interface (ge | xe)-fpc/pic/port.domain;<br />

auto-discovery;<br />

priority number;<br />

}<br />

}<br />

}<br />

}<br />

}<br />

}<br />

}<br />

connectivity-fault-management<br />

• IEEE 802.1ag OAM Connectivity Fault Management Overview on page 181<br />

• Creating the Maintenance Domain on page 184<br />

Copyright © 2012, <strong>Juniper</strong> <strong>Networks</strong>, Inc.<br />

g017327

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