Cisco Cisco Packet Data Gateway (PDG) Fehlerbehebungsanleitung
Troubleshooting the System
▀ Verifying Network Connectivity
▄ Cisco ASR 5000 Series System Administration Guide
OL-22969-02
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.
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. This is due to the fact that
contexts act like virtual private networks (VPNs) in that they operate independently of the others. Therefore, ports,
interfaces, and routes configured in one context can not be tested from another without additional configuration.
contexts act like virtual private networks (VPNs) in that they operate independently of the others. Therefore, ports,
interfaces, and routes configured in one context can not be tested from another without additional configuration.
To switch between contexts you must enter the following command at the root prompt for the Exec mode:
is the name of the context that you wish to switch to. The following prompt appears:
Using the Ping Command
Using the ping 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:
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:
Keyword/Variable
Description
<
>
Identifies the remote node to which is the target of the ping command.
specifies the remote node using the node‘s assigned IP
address specified using the standard IPv4.
<
>
Specifies the number of packets to send to the remote host for verification.
must be within the range 1 through 10000. The default is 5.
<
>
Specifies a pattern to use to fill the internet control message protocol packets
with.
with.
must be specified in hexadecimal format with a value in
the range hexadecimal 0x0000 through 0xFFFF.
must begin with a ‗0x‘ followed by up to 4 hexadecimal
digits.
The default is that each octet of the packet is encoded with the octet number of
the packet.
The default is that each octet of the packet is encoded with the octet number of
the packet.
<
>
Specifies the number of bytes each IP datagram.
must be a value in the range 40 through 18432. The default is
56.