[c-nsp] Incorrect bandwidth

[nasir.shaikh at bt.com]

Hi,
I have an 2621XM running c2600-ik9s-mz.123-22a.bin and I noticed
something strange.
Reports were showing utilisation of more than 100%. This can be true in
some cases but for E1 interfaces I always thought that the router
calculates the correct bw depending on the number of channels used. e.g

router#sh run int s0/0:0    
Building configuration...

Current configuration : 318 bytes
!
interface Serial0/0:0        <<no bandwidth configured>>
 description ** To PE ***
 no ip address
 encapsulation frame-relay IETF
 tx-ring-limit 2
 tx-queue-limit 2
 frame-relay lmi-type ansi
 max-reserved-bandwidth 100
 service-policy input IN-S0/0:0
 service-policy output OUT-S0/0:0
end
!
router#sh interface Serial0/0:0    
Serial0/0:0 is up, line protocol is up 
  Hardware is PowerQUICC Serial
  description ** To PE ***
  MTU 1500 bytes, BW 1984 Kbit, DLY 20000 usec,      <<bw 1984 kbps>>
     reliability 255/255, txload 6/255, rxload 56/255
  Encapsulation FRAME-RELAY IETF, loopback not set
<<output omitted>>
  Timeslot(s) Used:1-31, SCC: 0, Transmitter delay is 0 flags
<<number of timeslots used>>

But the bandwidth calculated for the sub-interface has a different
value:

rotuer#sh run int s0/0:0.101   
Building configuration...

Current configuration : 175 bytes
!
interface Serial0/0:0.101 point-to-point      << also no bw statement>>
 description Primary VPN WAN Link
 ip unnumbered Loopback10
 ip flow ingress
 no cdp enable
 frame-relay interface-dlci 101 

!
rotuer#sh interface Serial0/0:0.101
Serial0/0:0.101 is up, line protocol is up 
  Hardware is PowerQUICC Serial
  Description: Primary VPN WAN Link
  Interface is unnumbered. Using address of Loopback10 
  MTU 1500 bytes, BW 1024 Kbit, DLY 20000 usec,      <<bw 1024 kbps>>
     reliability 255/255, txload 4/255, rxload 32/255
  Encapsulation FRAME-RELAY IETF
  Last clearing of "show interface" counters never

Any ideas if this is a bug? Am I missing something here?

Thanks in advance


Nasir Shaikh