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Configuration Guide - VPN

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of VPN, including GRE, BGP/MPLS IP VPN, BGP/MPLS IPv6 VPN, VLL, PWE3, and VPLS.
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Verifying Connectivity of the VLL Network

Verifying Connectivity of the VLL Network


After a VLL network is established, perform a virtual circuit connectivity verification (VCCV) to check connectivity of the VLL network.

VCCV is an end-to-end fault detection and diagnosis mechanism which includes VCCV ping and VCCV tracert. VCCV ping is a tool for manually testing VC connectivity; while VCCV tracert is tool for manually locating an abnormal node on a PW.


  • Run the ping vc pw-type pw-id [ peer-address ] [ -c echo-number | -m time-value | -s data-bytes | -t timeout-value | -exp exp-value | -r reply-mode | -v | -g ] * control-word command to check the connectivity of the Martini VLL network.
  • Run the tracert vc pw-type pw-id [ peer-address ] [ -exp exp-value | -f first-ttl | -m max-ttl | -r reply-mode | -t timeout-value | -g ] * control-word [ full-lsp-path ] [ detail ] command to locate the fault on the VLL network in Martini mode.
Updated: 2019-04-03

Document ID: EDOC1100075353

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