Avaya BayRS Version 15.5.0.0 Uživatelský manuál Strana 41

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 198
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 40
Configuring Differentiated Services
314470-15.5 Rev 00 5-3
If you implement RED for queue management instead of tail-drop (that is,
you set the queue parameter
drop-type to red and you associate the queue
classifier with a RED function), the probability of dropping packets may
adversely affect the latency requirements of some applications. Adjust the
following parameters to achieve the required latency levels for the queue:
-- RED parameters
min-threshold and max-threshold (see “Modifying
RED Parameters” on page 3-1 for instructions).
-- Queue parameters
average-queue-gain and idle-queue-loss-rate (see
“Modifying a DSQMS Queue” in Configuring Differentiated Services for
instructions).
Version 15.4.0.0
The following section is an amendment to Chapter 2, “Starting Differentiated
Services” in Configuring Differentiated Services.
Implementation Notes
The following guidelines can help you successfully configure DSQMS on your
router:
You can configure DSQMS on these interfaces only: Ethernet, HSSI, MCT1,
MCE1, T1/FT1, E1/FE1, and synchronous.
If the Ethernet interface is connected to an external access device such as DSL
or Cable modem, then Nortel Networks recommends considering policing on
the ingress interface of the router by configuring traffic filters and also
enabling dequeue-at-line-rate in DSQMS on the egress ethernet interface for
traffic management.
If you enable flow fairness on a queue, you cannot configure that queue as a
best-effort queue. For information about enabling flow fairness on a queue or
designating the queue as best effort, see “Modifying a DSQMS Queue” in
Configuring Differentiated Services.
If you configure both weighted and priority queues on an interface, you may
experience latency problems with the highest priority queues. To avoid such
problems:
Zobrazit stránku 40
1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 197 198

Komentáře k této Příručce

Žádné komentáře