Cisco 1700 series Yapılandırma - Sayfa 25

Ağ Yönlendiricisi Cisco 1700 series için çevrimiçi göz atın veya pdf Yapılandırma indirin. Cisco 1700 series 34 sayfaları. Secure firewall management center
Ayrıca Cisco 1700 series için: Mevzuata Uygunluk ve Güvenlik Bilgileri Kılavuzu (45 sayfalar), Manuel (15 sayfalar), Yapılandırma Kılavuzu (25 sayfalar), Uygulama Notu (41 sayfalar), Donanım Sorun Giderme (12 sayfalar), Genel Bakış Kılavuzu (13 sayfalar), Manuel (5 sayfalar), Hızlı Başlangıç Kılavuzu (6 sayfalar), Donanım Kurulum Kılavuzu (46 sayfalar)

interface Virtual-Template1

bandwidth 320

ip unnumbered Loopback1

ip tcp header-compression iphc-format

service-policy output ADSL-2

ip rtp header-compression iphc-format

Tunable Transmission Ring

The transmission (tx) ring is the first-in, first-out (FIFO) buffer used to hold frames before transmission

at the DSL driver level. The tx ring defines the maximum number of packets that can wait for

transmission at Layer 2.

The tx ring complements the ability of LLQ to minimize jitter and latency of voice packets. For

maximum voice quality, a low tx ring setting should be used. For maximum data throughput, a high tx

ring setting should be used.

You can configure the size of the tx ring for each PVC. The default value is 60. However, the value of

the setting can be from 2 through 60.

A low tx ring setting, such as 3, is required for latency-critical traffic.

Note

For example, when the tx ring limit is configured as 3 and LLQ is configured on the PVC, the worst case

delay for a voice packet is the time required to transmit three data packets. When the buffering is reduced

by configuring the tx ring limit, the delay experienced by voice packets is reduced by a combination of

the tx ring and LLQ mechanism.

The size of the tx ring buffer is measured in packets, not particles.

Note

Configuration Example

The following example is a configuration of the tx ring limit on an ATM PVC interface. To enable the

tx ring limit, enter the tx-ring-limit command.

class-map match-all VOIP

match ip dscp 32

class-map CRITICAL

match access-group 100

policy-map 1751_ADSL

class CRITICAL

priority 48

class VOIP

bandwidth 64

set ip precedence 6

interface Loopback1

ip address 10.0.0.10 255.255.255.252

interface ATM0/0

dsl operating-mode auto

no ip address

no atm ilmi-keepalive

interface ATM0/0.1

OL-3317-03

Configuring an ADSL WAN Interface Card on Cisco 1700 Series Routers

Configuring Quality of Service Parameters