QoS

From: Joseph D. Phillips (josephdphillips@fastmail.us)
Date: Fri Nov 05 2004 - 23:34:50 GMT-3


Regarding Internetworkexpert Lab 15:

Could someone please explain to me the math used to equate the following
custom queueing config (or at least send me a Cisco link explaining it)....

interface e0/1
  custom-queue-list 1
queue-list 1 protocol ip 1 tcp www
queue-list 1 protocol ip 2 tcp ftp
queue-list 1 protocol ip 2 tcp ftp-data
queue-list 1 protocol ip 3 tcp telnet
queue-list 1 default 4
queue-list 1 queue 1 byte-count 5000 limit 30
queue-list 1 queue 2 byte-count 3000
queue-list 1 queue 3 byte-count 500

...to this...........

 class-map match-all migrate-ftp
  match protocol ftp
 class-map match-all migrate-www
  match protocol http
 class-map match-all migrate-telnet
  match protocol telnet
 policy-map migrate
  class migrate-www
   bandwidth 50
   queue-limit 30
  class migrate-ftp
   bandwidth 30
  class migrate-telnet
   bandwidth 5
interface Ethernet0/1
 max-reserved-bandwidth 85
 service-policy output migrate

(By the way I couldn't do bandwidth 5 under the policy-map.. the lowest
value was 8.)

????????

If the byte-count is used to determine the bandwidth, www traffic, for
instance, would be limited to 40,000 bps which is .0004 of the
transmission rate the link supports (Ethernet).



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