Checking The Network Connectivity And Reachability - Huawei quidway s7700 Configuration Manual

Quidway S7700 Smart Routing Switch
Configuration Guide - VPN
l
l
l
l
l
----End

4.10.2 Checking the Network Connectivity and Reachability

This part describes how to use the ping command to detect network connectivity between the
sending end and the receiving end, and how to use the tracert command to identify the devices
along the path.
Procedure
l
l
l
l
----End
Example
After the VPN configuration, using the ping command with ipv6 vpn6-instance vpn6-instance-
name on PE device, you can check whether the PE and the CE that belongs to the same VPN
can communicate with each other. If the ping fails, you can use the tracert command with vpn6-
instance vpn6-instance-name to locate the fault.
If multiple interfaces bound with the same VPN exist on the PE, specify the source IP address,
that is, -a source-ipv6-address when you ping the remote CE that accesses the peer PE. If you
do not specify a source IP address, the PE selects the smallest IPv6 address of the interface bound
to the IPv6 VPN on the PE as the source address of the ICMPv6 packet. If the CE does not have
the route to the selected IPv6 address, the ICMPv6 packet sent back from the peer PE is discarded.
Issue 01 (2011-07-15)
Run the display bgp vpnv6 { all | vpn6-instance vpn6-instance-name } group [ group-
name ] command to check BGP IPv6 VPN peer group information.
Run the display bgp vpnv6 all peer [ [ ipv4-address ] verbose ] or display bgp vpnv6
vpn6-instance vpn6-instance-name peer [ [ ipv6-address ] verbose ] command to check
BGP IPv6 VPN peer information.
Run the display bgp vpnv6 { all | vpn6-instance vpn6-instance-name } network command
to check VPN-IPv6 routing information advertised.
Run the display bgp vpnv6 { all | vpn6-instance vpn6-instance-name } paths [ as-regular-
expression ] command to check AS path information of BGP VPN-IPv6.
Run the display bgp vpn6-instance vpn6-instance-name vpn6-instance-name peer
{ group-name | ipv6-address } log-info command to check BGP peer's log information of
specified IPv6 VPN instance.
Run the ping ipv6 host command to check whether the IPv6 network is correctly set up to
send IPv6 packets from the transmitting end to the destination address.
Run the tracert ipv6 ipv6-host command to check the gateways through which the IPv6
packets are sent from the transmitting end to the destination address.
Run the ping [ ip ] [ -a source-ip-address | -c count | -d | -f | -h ttl-value | -i interface-
type interface-number | -m time | -n | -p pattern | -q | -r | -s packetsize |-t timeout | -tos tos-
value | -v | -vpn-instance vpn-instance-name ] * host command to check whether the IPv4
backbone network is correctly set up to send IPv4 packets from the transmitting end to the
destination address.
Run the tracert [ -a source-ip-address | -f first-ttl | -m max-ttl | -p port | -q nqueries | -vpn-
instance vpn-instance-name | -w timeout ] * host command to check the gateways through
which the IPv4 packets are sent from the transmitting end of the IPv4 backbone network
to the destination address of the IPv4 backbone network.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4 BGP MPLS IPv6 VPN Configuration
366