Avaya Managing Routers and BNX Platforms Uživatelský manuál stáhnout pdf (Strana 179)

Performing Administrative Functions

7-19

IP Ping Responses

Site Manager displays one of the following messages when you click on Ping. (If

you enter a value other than 0 for Retries, Site Manager displays one of the

following messages for the default ping, plus one for each additional ping.)

• An “alive” message appears if the router received an ICMP echo response

from the target device within the timeout allowed. The message also provides

the size of the test packet. F

igure 7-11 shows a sample message.

Figure 7-11. Ping Is Alive Window

• A “does not respond” message appears if the media access control (MAC)

address of the target device is resolved, but the router did not receive an ICMP

echo response from the target device within the timeout allowed. F

igure 7-12

shows a sample message.

Figure 7-12. Ping Does Not Respond Window

• An “ICMP host unreachable from <y.y.y.y>” message appears if the router

whose address is y.y.y.y cannot forward the ping request any further along the

path to the target device. IP updates its IP routing or Address Resolution

Protocol (ARP) table accordingly. A sample message follows:

ping: ICMP host unreachable from 192.32.243.1

1 2 ... 174 175 176 177 178 179 180 181 182 183 184 ... 249 250

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Avaya Managing Routers and BNX Platforms Uživatelský manuál Strana 179