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Chapter 4
Cisco's Diagnostic Commands
txq 48000180, txacc 4800009A (value 0), txlimit 341
Ethernet5/4, addr 0010.29d1.68a4 (bia 0010.29d1.68a4)
gfreeq 48000130, lfreeq 48000188 (1536 bytes),
throttled 0
rxlo 4, rxhi 598, rxcurr 0, maxrxcurr 0
txq 48000190, txacc 480000A2 (value 0), txlimit 341
Ethernet5/5, addr 0010.29d1.68a5 (bia 0010.29d1.68a5)
gfreeq 48000130, lfreeq 48000198 (1536 bytes),
throttled 0
rxlo 4, rxhi 598, rxcurr 0, maxrxcurr 0
txq 480001A0, txacc 480000AA (value 0), txlimit 341
At the top of the output, you can see three pools allocated: pool0, pool1,
and pool2. Each interface processor is allocated a certain share of the buffer
pool. By default, EIPs are allocated 1524 bytes of the 512KB. Other default
settings are listed in Table 4.2.
Input and Output Queues
Input queues reside on the RP, and they are used to link the SP buffers to
the RP buffers. The queue reserves RP buffer space for a packet that was
forwarded from the SP/SSP. If the Router Processor doesn't process the
queued packets at the same rate, the queue fills up and the incoming
packets are dropped.
T A B L E 4 . 2
Interface Processor Buffer Size Allocation
Board Type
Buffer Size (bytes)
FIP
4470
FSIP
4470
AIP
4470
HSSI
4470
TRIP
4470
EIP
1524
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