KNOWN RESTRICTIONS AND LIMITATIONS
10/24/01 P/N: 9038090-17 CUSTOMER RELEASE NOTES Page: 24 of 34
F0615-F Subject to Change Without Notice
Rate-Limiting I.D.
When Flow-Aggregate Rate-Limiting is enabled, the amount of traffic exiting a serial WAN port
running PPP may be significantly less than the specified rate-limit. This is due to a PPP priority-
queue overflow.
Workaround: Change the PPP priority queue depths on the serial port using the following
commands:
ppp define service <name> [low-priority-queue-depth|med-priority-queue-depth|high-
priority-queue-depth] <number>
ppp apply service <name> ports <wan-port>
F1475
10/100, Gigabit, and FDDI cards containing SIPP ASIC versions 2.0 and 2.1 are restricted to these
rate limiting ranges:
• 1.5M – 100M for 10/100 and FDDI modules
• 6M – 1G for Gigabit modules
To display the version of the SIPP ASIC on the cards in your system enter the Enable mode
command system show hardware verbose. For each slot listed locate the Service String line. The
next two lines are examples of the service strings with the SIPP version bolded and slightly
enlarged:
Service String: 4_G2.1_4_I2.0_16_02.0_2
Service String: 90_G1.1_16_I2.1_16_02.1_16
10226
Remote Network Monitor Device (RMON) I.D.
RMON must be enabled in the configuration before RMON MIBs may be accessed via SNMP. F0832
When the user negates and re-enters the rmon enable command, RMON memory will fill and
deliver the following warning message:
%SNMP-W-RMON_MEM, RMON memory max’ed out. You may want to add more memory
to RMON
Subsequently attempting to perform a hot swap through the system hotswap out command will
cause the X-Pedition to freeze.
F1215
When passing traffic from one port to another, and using RMON to capture incoming packets on one
of these ports, the receiving port will receive twice as many packets as the number that was sent.
F1378
Attempting to set the data-mask and data-not-mask options in the rmon filter command through
the CLI will not succeed. The masks will not properly convert from a string to a mask.
F1387
X-Pedition hardware currently drops BAD CRC, Runt and Jumbo packets before RMON is able to
capture them. Because of this, the RMON parameters pkt-status, status-mask and status-not-
mask (designed to capture these specific packet types) do not work.
F1390
Netsight 3.0's RMON tool allows the user to create packet capture indexes. Currently, however, it
will not allow the user to modify a previously created packet capture index.
F1413
After using the rmon set protocol-directory to set all parameters to “off”, protocols will still be
logged in the RMON matrix, address-map and hosts tables.
F1416
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