System information
424
Observer Suite: RMON Console
For example, if you define an offset-sequencing trigger to look for telnet packets (i.e.,
looking for TCP port 23), the offset would be
34 —14 bytes of Ethernet heading + 20 more
bytes of IP header, and the sequence would be
00 17 — port 23 in hex.
See the section on active highlighting (in the Packet View sections of the manual) for help
on creating offsets.
Note: This trigger is only available using Network Instruments’ RMON2
Probe.
Undersized Packets
The number of packets received that were less than 64 octets long (excluding framing bits,
but including FCS octets) and were otherwise well formed.
RMON Token Ring Triggers
Packet Size 18-63 Byte Packets
The number of good non-MAC frames received that were between 18 and 63 octets in
length inclusive, excluding framing bits, but including FCS octets.
Packet Size 64-127 Byte Packets
The number of good non-MAC frames received that were between 64 and 127 octets in
length inclusive, excluding framing bits, but including FCS octets.
Packet Size 128-255 Byte Packets
The number of good non-MAC frames received that were between 128 and 255 octets in
length inclusive, excluding framing bits, but including FCS octets.
Packet Size 256-511 Byte Packets
The number of good non-MAC frames received that were between 256 and 511 octets in
length inclusive, excluding framing bits, but including FCS octets.
Packet Size 512-1023 Byte Packets
The number of good non-MAC frames received that were between 512 and 1023 octets in
length inclusive, excluding framing bits, but including FCS octets.
Packet Size 1024-2047 Byte Packets
The number of good non-MAC frames received that were between 1024 and 2047 octets
in length inclusive, excluding framing bits, but including FCS octets.
Packet Size 2048-4095 Byte Packets
The number of good non-MAC frames received that were between 2048 and 4095 octets
in length inclusive, excluding framing bits, but including FCS octets.