Viewing ICMP Statistics and Errors
Page 25-21
Address Mask Messages
The number of Address Mask Reply messages that were sent/received by this switch in an
attempt to determine the subnet mask for a network.
Address Mask Reply Messages
The number of Address Mask Reply messages that were sent/received by this switch.
Errors
The number of ICMP messages this switch sent/received but was unable to process because
something was wrong (for example, a checksum failure).
Destination Unreachable Msgs
The number of ICMP “destination unreachable” messages that were sent/received. These
occur when the gateway is unable to route a datagram to its destination.
Time Exceeded Msgs
The number of “time exceeded” messages that were sent/received. These occur when a
packet is dropped because the Time-to-Live counter reaches zero. When a large number of
these messages are encountered this is a symptom that packets are looping, that congestion is
severe, or that the Time-to-Live counter is set too low. These messages also occur when all
the fragments trying to be reassembled don‘t arrive before the reassembly timer expires.
Parameter Problems
The number of messages sent/received which indicate that an illegal value has been detected
in a header field. These messages can indicate a problem in the sending host’s IP software or
possibly in the gateway’s software.
Source Quenches
The number of messages sent/received which tell a host that is sending too many packets. A
host should attempt to reduce its transmissions upon receiving these messages.
Summary of Contents for Omni Switch/Router
Page 1: ...Part No 060166 10 Rev C March 2005 Omni Switch Router User Manual Release 4 5 www alcatel com ...
Page 4: ...page iv ...
Page 110: ...WAN Modules Page 3 40 ...
Page 156: ...UI Table Filtering Using Search and Filter Commands Page 4 46 ...
Page 164: ...Using ZMODEM Page 5 8 ...
Page 186: ...Displaying and Setting the Swap State Page 6 22 ...
Page 202: ...Creating a New File System Page 7 16 ...
Page 270: ...Displaying Secure Access Entries in the MPM Log Page 10 14 ...
Page 430: ...OmniChannel Page 15 16 ...
Page 496: ...Configuring Source Route to Transparent Bridging Page 17 48 ...
Page 542: ...Dissimilar LAN Switching Capabilities Page 18 46 ...
Page 646: ...Application Example DHCP Policies Page 20 30 ...
Page 660: ...GMAP Page 21 14 ...
Page 710: ...Viewing the Virtual Interface of Multicast VLANs Page 23 16 ...
Page 722: ...Application Example 5 Page 24 12 ...
Page 788: ...Viewing UDP Relay Statistics Page 26 24 ...
Page 872: ...The WAN Port Software Menu Page 28 46 ...
Page 960: ...Deleting a PPP Entity Page 30 22 ...
Page 978: ...Displaying Link Status Page 31 18 ...
Page 988: ...Displaying ISDN Configuration Entry Status Page 32 10 ...
Page 1024: ...Backup Services Commands Page 34 14 ...
Page 1062: ...Diagnostic Test Cable Schematics Page 36 24 ...
Page 1072: ...Configuring a Switch with an MPX Page A 10 ...
Page 1086: ...Page B 14 ...
Page 1100: ...Page I 14 Index ...