Cisco ASR 5000 Manuale di installazione - Pagina 25

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Troubleshooting

Restoring a Previously Halted Card

Follow the instructions below to restore a card that was previously halted. These instructions assume you are

at the root prompt for the Exec mode.

Step 1

Reboot the card to be restored by entering the following command.

host_name

[local]

You will receive the following prompt:

Are You Sure? [Yes|No]:

Step 2

Press Y to start the reboot of the card.

Step 3

Verify that the migration was successful by entering the show card table command at the prompt.

Check the entry in the Oper State column next to the line card that was just restored. Its state should be the state of that

it was in before it was halted.

Verifying Network Connectivity

There are multiple commands supported by the system to verify and/or troubleshoot network connectivity.

Note that network connectivity can only be tested once system interfaces and ports have been configured and

bound.

The commands specified in this section should be issued on a context-by-context basis. Contexts act like

virtual private networks (VPNs) that operate independently of other contexts. Ports, interfaces, and routes

configured in one context cannot be tested from another context without additional configuration.

To switch between contexts enter the following command at the root prompt for the Exec mode:

[local]

context_name is the name of the context to which you wish to switch. The following prompt appears:

[context_name]

Using the ping or ping6 Command

The ping or ping6 command verifies the system's ability to communicate with a remote node in the network

by passing data packets between and measuring the response. This command is useful in verifying network

routing and if a remote node is able to respond at the IP layer. The command has the following syntax:

Syntax

The ping command has the following syntax:

ping host_ipv4_address [ count num_packets ] [ pattern packet_pattern ] [ size octet_count ] [ src {

src_host_name | src_host_ipv4_address } ] [ vrf vrf_nam ]

ping6 host_ipv6_address [ count num_packets

] [ src { src_host_name | src_host_ipv6_address } ] [ vrf vrf_nam ]

card reboot slot# -force

host_name

context context_name

host_name

[ flood ][ pattern packet_pattern ] [ size octet_count

]

ASR 5000 System Administration Guide, StarOS Release 21.2

Verifying Network Connectivity