Brocade Communications Systems Network Advisor 12.3.0, Руководство пользователя

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1064 Brocade Network Advisor SAN User Manual
53-1003154-01
FCIP troubleshooting
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7. Click Close on the IP Ping Result dialog box.
8. Click Cancel on the IP Ping dialog box.
Tracing IP routes
The Management application enables you to select an source and a target and displays the
detailed routing information from the source port or area on the local switch to the destination port
or area on another switch.
Trace route cannot be performed on the offline devices or virtual devices.
NOTE
Trace route is only supported on Fabric OS devices running Fabric OS 5.2 or later.
To trace routes, complete the following steps.
1. Select Monitor > Troubleshooting > FCIP > Trace Route.
The IP Traceroute dialog box displays.
2. Select a switch from the Available Switches table.
3. Select a port from the GigE Port list.
4. Select an IP address switch from the IP Interface list.
5. Enter the remote IP address in the Remote IP Address field.
6. Click OK.
The IP Traceroute Result dialog box displays.
Traceroute sends three ICMP Ping packets to the destination address with a time to live (TTL)
of one hop, and expects a ‘TTL Expired’ error back from the first router to obtain the IP address
of the first hop. Traceroute then repeats the operation with a TTL of two hops to get the IP
address of the second hop. This process repeats for up to ten hops, or until a successful PING
response is received.
The IP Trace Details table displays the results of each attempt.
Round Trip Time (ms) The time in milliseconds between sending the packet and receiving the
response. This provides a rough indication of network congestion or
latency. It is normal for the first packet to experience a higher round trip
time than later packets, if the intermediate routers need to do ARP
requests to locate the next hop.
Time To Live (hops) The number of hops remaining in the received response. The time to live
is decremented by each router that forwards the packet. The packet is
dropped if the time to live reaches zero.
TABLE 82 IP Ping Details
Field or Component Description