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7600 and SIP-200

Reference to the below information from Cisco, and the output of the show interface POS commands (7606-S router having 8 POS interfaces on the same SIP-200). I have 2 questions, I hope someone can answer me:

1-    The total (aggregated from all POS ports) is 1199 Mbps, how can it exceed the bandwidth supported in the Sip-200 data sheet! Which is limited to only 622 Mbps

2-    How the “show interfaces POS” command show different values! When executed from the router and then from the SIP line? Knowing that it was issued at exactly the same time

http://www.cisco.com/en/US/products/hw/routers/ps368/module_installation_and_configuration_guides_chapter09186a008043eaf5.html#wp1079936

Table 2-1 SIP Summary

SIP
Product Number
Description
Maximum Number of SPAs
Minimum Cisco IOS Release

Cisco 7600 SIP-200

7600-SIP-200

622-Mbps SPA interface processor

4

12.2(18)SXE

Cisco 7600 SIP-400

7600-SIP-400

2.5-Gbps SPA interface processor

4

12.2(18)SXE

Cisco 7600 SIP-600

7600-SIP-600

1 x 10-Gbps SPA Interface Processor

1

12.2(18)SXF

Router in production loaded with 8 STM1 POS (4x 2 ports) in the same SIP-200

Router-7606-S#show int POS4/0/0 | in rate

  Queueing strategy: fifo

  30 second input rate 113577000 bits/sec, 18624 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

Router-7606-S#show int POS4/0/1 | in rate

  Queueing strategy: fifo

  30 second input rate 114730000 bits/sec, 19547 packets/sec

  30 second output rate 34756000 bits/sec, 21933 packets/sec

Router-7606-S#show int POS4/1/0 | in rate

  Queueing strategy: fifo

  30 second input rate 115812000 bits/sec, 19059 packets/sec

  30 second output rate 32348000 bits/sec, 21109 packets/sec

Router-7606-S#show int POS4/1/1 | in rate

  Queueing strategy: fifo

  30 second input rate 102074000 bits/sec, 18261 packets/sec

  30 second output rate 32074000 bits/sec, 21227 packets/sec

Router-7606-S#show int POS4/2/0 | in rate

  Queueing strategy: fifo

  30 second input rate 108817000 bits/sec, 18604 packets/sec

  30 second output rate 34191000 bits/sec, 22293 packets/sec

Router-7606-S#show int POS4/2/1 | in rate

  Queueing strategy: fifo

  30 second input rate 106495000 bits/sec, 19023 packets/sec

  30 second output rate 37666000 bits/sec, 22649 packets/sec

Router-7606-S#show int POS4/3/0 | in rate

  Queueing strategy: fifo

  30 second input rate 107130000 bits/sec, 19775 packets/sec

  30 second output rate 33789000 bits/sec, 21184 packets/sec

Router-7606-S#show int POS4/3/1 | in rate

  Queueing strategy: fifo

  30 second input rate 121987000 bits/sec, 21064 packets/sec

  30 second output rate 34180000 bits/sec, 21874 packets/sec

Router-7606-S#

Total is 1199 Mbps !!!!

At the same time, if you execute the same command under the SIP command line:

SIP-200-4#show int POS4/0/0 | in rate

  Queueing strategy: fifo

  30 second input rate 63111000 bits/sec, 10389 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/0/1 | in rate

  Queueing strategy: fifo

  30 second input rate 61844000 bits/sec, 10611 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/1/0 | in rate

  Queueing strategy: fifo

  30 second input rate 60137000 bits/sec, 9908 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/1/1 | in rate

  Queueing strategy: fifo

  30 second input rate 58205000 bits/sec, 10201 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/2/0 | in rate

  Queueing strategy: fifo

  30 second input rate 59549000 bits/sec, 10411 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/2/1 | in rate

  Queueing strategy: fifo

  30 second input rate 60637000 bits/sec, 10558 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/3/0 | in rate

  Queueing strategy: fifo

  30 second input rate 59032000 bits/sec, 10565 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

SIP-200-4#show int POS4/3/1 | in rate

  Queueing strategy: fifo

  30 second input rate 70914000 bits/sec, 11811 packets/sec

  30 second output rate 0 bits/sec, 0 packets/sec

729
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