Supported Platforms
Monitoring Hosts Using the J-Web Ping Host Tool
Purpose
Use the J-Web ping host tool to verify that the host can be reached over the network. The output is useful for diagnosing host and network connectivity problems. The switch sends a series of ICMP echo (ping) requests to a specified host and receives ICMP echo responses.
Action
To use the J-Web ping host tool:
- Select Troubleshoot>Ping Host.
- Next to Advanced options, click the expand icon.
- Enter information into the Ping Host page, as described
in Table 1.
The Remote Host field is the only required field.
- Click Start.
The results of the ping operation are displayed in the main pane . If no options are specified, each ping response is in the following format:
bytes bytes from ip-address: icmp_seq=number ttl=number time=time - To stop the ping operation before it is complete, click OK.
Meaning
Table 1 lists the fields.
Table 1: J-Web Ping Host Field Summary
| Field | Function | Your Action |
|---|---|---|
Remote Host | Identifies the host to ping. | Type the hostname or IP address of the host to ping. |
| Advanced Options | ||
Don't Resolve Addresses | Determines whether to display hostnames of the hops along the path. |
|
Interface | Specifies the interface on which the ping requests are sent. | Select the interface on which ping requests are sent from the list. If you select any, the ping requests are sent on all interfaces. |
Count | Specifies the number of ping requests to send. | Select the number of ping requests to send from the list. |
Don't Fragment | Specifies the Don't Fragment (DF) bit in the IP header of the ping request packet. |
|
Record Route | Sets the record route option in the IP header of the ping request packet. The path of the ping request packet is recorded within the packet and displayed in the main pane. |
|
Type-of-Service | Specifies the type-of-service (TOS) value in the IP header of the ping request packet. | Select the decimal value of the TOS field from the list. |
Routing Instance | Name of the routing instance for the ping attempt. | Select the routing instance name from the list. |
Interval | Specifies the interval, in seconds, between transmissions of individual ping requests. | Select the interval from the list. |
Packet Size | Specifies the size of the ping request packet. | Type the size, in bytes, of the packet. The size can be from 0 through 65468. The switch adds 8 bytes of ICMP header to the size. |
Source Address | Specifies the source address of the ping request packet. | Type the source IP address. |
Time-to-Live | Specifies the time-to-live (TTL) hop count for the ping request packet. | Select the TTL value from the list. |
Bypass Routing | Determines whether ping requests are routed by means of the routing table. If the routing table is not used, ping requests are sent only to hosts on the interface specified in the Interface box. If the host is not on that interface, ping responses are not sent. |
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