- #Setting qos for voip on cisco 2950 switch serial
- #Setting qos for voip on cisco 2950 switch software
- #Setting qos for voip on cisco 2950 switch code
- #Setting qos for voip on cisco 2950 switch series
To configure a router's interface to begin learning traffic patterns, enter the following command in interface configuration mode: Router(config-if) #auto discovery qosĪfter entering the previous command, wait for a period of time for the router to learn the traffic patterns crossing the interface. Specifically, AutoQoS for Enterprise allows a router to recognize multiple protocols traversing an interface and recommends a customized policy, based on learned traffic patterns.
#Setting qos for voip on cisco 2950 switch software
Introduced in Cisco IOS Software Release 12.3(7)T, AutoQoS for Enterprise extends the capabilities of AutoQoS on a Cisco router platform. AutoQoS, therefore, automatically configured these link efficiency mechanisms in addition to multiple other QoS mechanisms, including classification, marking, LLQ, and Remote Monitoring (RMON) traps to alert administrators if packet drops are excessive. Therefore, AutoQoS determined that certain link efficiency mechanisms (for example, Multilink PPP, RTP Header Compression, and TCP Header Compression) were appropriate.
#Setting qos for voip on cisco 2950 switch serial
The bandwidth configured for interface Serial 0/0 was set to 128 kbps. Rmon alarm 33333 cbQosCMDropBitRate.1081.1083 30 absolute rising-threshold 1 33333falling-threshold 0 owner AutoQoS Rmon event 33333 log trap AutoQoS description "AutoQoS SNMP traps for Voice Drops" Ip access-list extended AutoQoS-VoIP-RTCP
Ip access-list extended AutoQoS-VoIP-Control Service-policy output AutoQoS-Policy-UnTrust Match access-group name AutoQoS-VoIP-RTCP Match access-group name AutoQoS-VoIP-ControlĬlass-map match-any AutoQoS-VoIP-RTP-UnTrust To illustrate some of the configuration changes that AutoQoS can perform, consider the configuration of a serial interface shown in Example 7-1, without AutoQoS enabled.Įxample 7-1 Router Configuration Without AutoQoS interface Serial0/0Įxample 7-2 illustrates the configuration changes after entering the auto qos voip command for interface Serial 0/0.Įxample 7-2 Router Configuration with AutoQoSĬlass-map match-any AutoQoS-VoIP-Control-UnTrust To verify that AutoQoS is configured for a router interface, use the following command: Router# show auto qos AutoQoS takes the IP address from the physical interface and uses it for the virtual multilink interface that it creates. On a low-speed interface, AutoQoS configures Multilink PPP (MLP), which requires an IP address on the physical interface.
If an interface's bandwidth is less than 768 kbps, it is considered a low-speed interface.
Note that the interface's bandwidth determines which AutoQoS features are enabled. The interface must not be administratively shut down. The correct bandwidth should be configured on the interface, using the bandwidth command.Īn IP address must be configured on an interface if its speed is less than 768 kbps. The fr-atm option enables the AutoQoS feature for Frame Relay-to-ATM links and is issued from DLCI configuration mode.īefore enabling AutoQoS on a router interface, consider the following prerequisites:Ĭisco Express Forwarding (CEF) must be enabled, because AutoQoS uses NBAR, which requires the CEF feature.Ī QoS policy must not be currently attached to the interface.
#Setting qos for voip on cisco 2950 switch code
The trust option indicates that AutoQos should classify voice traffic based on Layer 3 Differentiated Services Code Point (DSCP) priority markings, instead of using Network-Based Application Recognition (NBAR). On a router platform, the following command enables AutoQoS from either interface configuration mode or from DLCI configuration mode (for a Frame Relay circuit): Router(config-if) #auto qos voip For current information concerning AutoQoS platform support, check Cisco's Feature Navigator at.
#Setting qos for voip on cisco 2950 switch series
Note - Cisco AutoQoS is available in the following Cisco IOS software releases-Cisco IOS Software Release 12.1E or later for the Cisco Catalyst 29 Series switches Cisco IOS Software Release 12.2T or later for the Cisco 2600, 2600XM, 3600, 3700, and 7200 Series routers Cisco IOS Software Release 12.1E or later for the Cisco Catalyst 4500 Series switches and Cisco Catalyst Operating System 7.5.1 or later for the Cisco Catalyst 6500 Series switches.
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