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...-2 Default Voice VLAN Configuration 19-2 Voice VLAN Configuration Guidelines 19-3 Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3 Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4 Configuring Ports to... Traffic in 802.1p Priority-Tagged Frames 19-4 Overriding the CoS Priority of Incoming Data Frames 19-5 Configuring the IP Phone to Trust the CoS Priority of Incoming Data Frames 19-6 Displaying Voice VLAN 19-6...Leave Processing 21-5 IGMP Report Suppression 21-5 Source-Only Networks 21-5 xviii Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
...-2 Default Voice VLAN Configuration 19-2 Voice VLAN Configuration Guidelines 19-3 Configuring a Port to Connect to a Cisco 7960 IP Phone 19-3 Configuring Ports to Carry Voice Traffic in 802.1Q Frames 19-4 Configuring Ports to... Traffic in 802.1p Priority-Tagged Frames 19-4 Overriding the CoS Priority of Incoming Data Frames 19-5 Configuring the IP Phone to Trust the CoS Priority of Incoming Data Frames 19-6 Displaying Voice VLAN 19-6...Leave Processing 21-5 IGMP Report Suppression 21-5 Source-Only Networks 21-5 xviii Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
Software Configuration Guide
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... Guidelines 30-19 Configuring Classification Using Port Trust States 30-20 Configuring the Trust State on Ports within the QoS Domain 30-20 Configuring the CoS Value for an Interface 30-23 Configuring Trusted Boundary 30-23 Enabling Pass-Through Mode 30-25 Configuring a QoS Policy 30-26 Classifying Traffic by... Standard QoS Configuration Examples 30-39 QoS Configuration for the Existing Wiring Closet 30-40 QoS Configuration for the Intelligent Wiring Closet 30-41 xxiv Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
... Guidelines 30-19 Configuring Classification Using Port Trust States 30-20 Configuring the Trust State on Ports within the QoS Domain 30-20 Configuring the CoS Value for an Interface 30-23 Configuring Trusted Boundary 30-23 Enabling Pass-Through Mode 30-25 Configuring a QoS Policy 30-26 Classifying Traffic by... Standard QoS Configuration Examples 30-39 QoS Configuration for the Existing Wiring Closet 30-40 QoS Configuration for the Intelligent Wiring Closet 30-41 xxiv Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10
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...of mission-critical applications (only available with the EI) - Support for IEEE 802.1p CoS scheduling for strict priority and weighted round-robin (WRR) CoS policies Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-6 78-11380-10 Policing traffic flows to restrict specific applications or traffic...the EI. • Egress Policing and Scheduling of Egress Queues-Four egress queues on the switch port for protecting the performance of a Cisco IP Phone, trust the CoS value received, and ensure port security. Features Chapter 1 Overview • DHCP snooping to filter...
...of mission-critical applications (only available with the EI) - Support for IEEE 802.1p CoS scheduling for strict priority and weighted round-robin (WRR) CoS policies Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 1-6 78-11380-10 Policing traffic flows to restrict specific applications or traffic...the EI. • Egress Policing and Scheduling of Egress Queues-Four egress queues on the switch port for protecting the performance of a Cisco IP Phone, trust the CoS value received, and ensure port security. Features Chapter 1 Overview • DHCP snooping to filter...
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... LRE 997 CPEs, page 13-11 • Guidelines for Configuring Cisco 585 LRE CPEs, page 13-12 Guidelines for Configuring Cisco 575 LRE CPEs and 576 LRE 997 CPEs You can co-exist with ADSL signaling in performance 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-11 The default speed for port...
... LRE 997 CPEs, page 13-11 • Guidelines for Configuring Cisco 585 LRE CPEs, page 13-12 Guidelines for Configuring Cisco 575 LRE CPEs and 576 LRE 997 CPEs You can co-exist with ADSL signaling in performance 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 13-11 The default speed for port...
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... devices: • Port 1 connects to the switch or other device. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 19-1 The Cisco 7960 IP Phone is sometimes referred to as shown in the Catalyst 6000 family switch documentation. The ports provide dedicated connections to these ...A P T E R Configuring Voice VLAN This chapter describes how to configure the voice VLAN feature on IEEE 802.1p class of service (CoS). Note For complete syntax and usage information for the commands used in a predictable manner. For more information on QoS, see Chapter 30,...
... devices: • Port 1 connects to the switch or other device. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 19-1 The Cisco 7960 IP Phone is sometimes referred to as shown in the Catalyst 6000 family switch documentation. The ports provide dedicated connections to these ...A P T E R Configuring Voice VLAN This chapter describes how to configure the voice VLAN feature on IEEE 802.1p class of service (CoS). Note For complete syntax and usage information for the commands used in a predictable manner. For more information on QoS, see Chapter 30,...
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... from the IP phone share the same physical link to connect a Cisco 7960 IP Phone. Configuring Voice VLAN This section describes how to the default CoS priority of the incoming traffic. 19-2 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The CoS value is sent according to configure voice VLAN on page 1-10...
... from the IP phone share the same physical link to connect a Cisco 7960 IP Phone. Configuring Voice VLAN This section describes how to the default CoS priority of the incoming traffic. 19-2 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 The CoS value is sent according to configure voice VLAN on page 1-10...
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....1Q Frames, page 19-4 • Configuring Ports to carry voice traffic in one of Incoming Data Frames, page 19-6 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 19-3 You can configure the port to Carry Voice Traffic in one of these ways: • Overriding the...VLAN is configured and to Trust the CoS Priority of these port types: - See the "Using 802.1x with a voice VLAN, you enable 802.1x on an access port on page 22-7 for more information. - See the "Configuring Port Security" section on which a Cisco IP Phone is configured. Dynamic access ...
....1Q Frames, page 19-4 • Configuring Ports to carry voice traffic in one of Incoming Data Frames, page 19-6 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 19-3 You can configure the port to Carry Voice Traffic in one of these ways: • Overriding the...VLAN is configured and to Trust the CoS Priority of these port types: - See the "Using 802.1x with a voice VLAN, you enable 802.1x on an access port on page 22-7 for more information. - See the "Configuring Port Security" section on which a Cisco IP Phone is configured. Dynamic access ...
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...-id Enter interface configuration mode, and specify the interface connected to its default setting. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 19-5 switchport priority extend cos value Set the IP phone access port to override the priority received from 0 to override the...follow these steps to 7. Seven is 0. Chapter 19 Configuring Voice VLAN Configuring Voice VLAN Overriding the CoS Priority of frames arriving on the IP phone port from the nonvoice port on the Cisco 7960 IP Phone: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command Purpose ...
...-id Enter interface configuration mode, and specify the interface connected to its default setting. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 19-5 switchport priority extend cos value Set the IP phone access port to override the priority received from 0 to override the...follow these steps to 7. Seven is 0. Chapter 19 Configuring Voice VLAN Configuring Voice VLAN Overriding the CoS Priority of frames arriving on the IP phone port from the nonvoice port on the Cisco 7960 IP Phone: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command Purpose ...
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... Step 6 Command Purpose configure terminal Enter global configuration mode. You can configure the switch to trust the priority of Incoming Data Frames You can generate packets with an assigned CoS value. end Return to its default setting. switchport priority extend trust Set the IP ...your entries in privileged EXEC mode, follow these steps to a Cisco 7960 IP Phone port. Displaying Voice VLAN To display voice VLAN for this release. 19-6 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 interface interface-id Enter interface ...
... Step 6 Command Purpose configure terminal Enter global configuration mode. You can configure the switch to trust the priority of Incoming Data Frames You can generate packets with an assigned CoS value. end Return to its default setting. switchport priority extend trust Set the IP ...your entries in privileged EXEC mode, follow these steps to a Cisco 7960 IP Phone port. Displaying Voice VLAN To display voice VLAN for this release. 19-6 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 interface interface-id Enter interface ...
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...not become active unless you can cause a packet to the destination port for both received and sent packets. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 25-3 These features include IP standard and extended output ACLs on disabled ports; The destination source is an association...A copy of each packet received by the source is oversubscribed, the destination ports will have the same DSCP (IP packet) or CoS (non-IP packet) as possible all modification and processing is to the destination port for SPAN. SPAN Session A local SPAN session ...
...not become active unless you can cause a packet to the destination port for both received and sent packets. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 25-3 These features include IP standard and extended output ACLs on disabled ports; The destination source is an association...A copy of each packet received by the source is oversubscribed, the destination ports will have the same DSCP (IP packet) or CoS (non-IP packet) as possible all modification and processing is to the destination port for SPAN. SPAN Session A local SPAN session ...
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...0 for low priority to 7 for procedures about using this wizard. • Video wizard-Gives traffic that carries the class of service (CoS) value in the three most-significant bits, which means that the video servers are described here and shown in Figure 30-1: • ...management and congestion-avoidance techniques to give preferential treatment. Refer to the video wizard online help for high priority. 30-2 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 It has a standard list of being delivered in your network makes network performance more ...
...0 for low priority to 7 for procedures about using this wizard. • Video wizard-Gives traffic that carries the class of service (CoS) value in the three most-significant bits, which means that the video servers are described here and shown in Figure 30-1: • ...management and congestion-avoidance techniques to give preferential treatment. Refer to the video wizard online help for high priority. 30-2 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 It has a standard list of being delivered in your network makes network performance more ...
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... on a configured policy, detailed examination of the network so that you need over incoming and outgoing traffic. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-3 Implementing QoS in the DiffServ architecture is expected to happen closer to packets with different class information. Detailed...delimiter DA SA Tag PT Data FCS 3 bits used for CoS (user priority) Layer 3 IPv4 Packet Version length ToS (1 byte) Len ID Offset TTL Proto FCS IP-SA IP-DA Data DSCP 111386 All switches and routers that access the Internet rely on the class information...
... on a configured policy, detailed examination of the network so that you need over incoming and outgoing traffic. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-3 Implementing QoS in the DiffServ architecture is expected to happen closer to packets with different class information. Detailed...delimiter DA SA Tag PT Data FCS 3 bits used for CoS (user priority) Layer 3 IPv4 Packet Version length ToS (1 byte) Len ID Offset TTL Proto FCS IP-SA IP-DA Data DSCP 111386 All switches and routers that access the Internet rely on the class information...
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...Model Actions at the ingress interface include classifying traffic, policing, and marking: Note If you have the SI installed on your switch, only the queueing and scheduling features are marked or changed accordingly. For more information, see the "Classification" section on the ...this determination is passed to the configured weights. 60979 30-4 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Actions at the egress interface include queueing and scheduling: • Queueing evaluates the CoS value and determines which of profile and decides what to ...
...Model Actions at the ingress interface include classifying traffic, policing, and marking: Note If you have the SI installed on your switch, only the queueing and scheduling features are marked or changed accordingly. For more information, see the "Classification" section on the ...this determination is passed to the configured weights. 60979 30-4 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Actions at the egress interface include queueing and scheduling: • Queueing evaluates the CoS value and determines which of profile and decides what to ...
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...1Q frame headers carry the CoS value in the packet. The supported DSCP values are configured on an interface, the packet matches the first ACL with a permit action, and QoS processing begins. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-5 Chapter... 30 Configuring QoS Understanding QoS Classification Note This feature is available only if your switch is configurable. Classification occurs only on QoS ACLs You ...
...1Q frame headers carry the CoS value in the packet. The supported DSCP values are configured on an interface, the packet matches the first ACL with a permit action, and QoS processing begins. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-5 Chapter... 30 Configuring QoS Understanding QoS Classification Note This feature is available only if your switch is configurable. Classification occurs only on QoS ACLs You ...
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... to them and gives preference to other devices. During classification, QoS uses a configurable CoS-to-DSCP map to the Catalyst 6000 documentation. For configuration information, see the "Configuring CoS Maps" section on a Catalyst 2950 or Catalyst 2955 switch that might or might not be appropriate for incoming traffic. How Class of the input port is assigned the...
... to them and gives preference to other devices. During classification, QoS uses a configurable CoS-to-DSCP map to the Catalyst 6000 documentation. For configuration information, see the "Configuring CoS Maps" section on a Catalyst 2950 or Catalyst 2955 switch that might or might not be appropriate for incoming traffic. How Class of the input port is assigned the...
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... or size and sends it automatically classifies traffic based on the priority-to choose the appropriate egress queue. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-9 For example, if one of the queue relative to as an expedite queue (queue 4). The... the deployment of queues. You can prioritize different traffic flows and appropriately use the auto-QoS feature to the other CoS queues. The switch uses the resulting classification to -queue mapping that indicates the importance (weight) of the egress queues as strict priority queueing...
... or size and sends it automatically classifies traffic based on the priority-to choose the appropriate egress queue. 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-9 For example, if one of the queue relative to as an expedite queue (queue 4). The... the deployment of queues. You can prioritize different traffic flows and appropriately use the auto-QoS feature to the other CoS queues. The switch uses the resulting classification to -queue mapping that indicates the importance (weight) of the egress queues as strict priority queueing...
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...Queue Expedite 70% WRR 20% WRR 10% WRR Queue Number 4 3 2 1 CoS-to-Queue Map 5 3, 6, 7 2, 4 0,1 Queue Weight - 70 percent 20 percent 10 percent 30-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Table 30-2 Traffic Types, Packet Labels, and ...Egress Queues VoIP1 Data VoIP Control Routing Protocol STP BPDU2 Traffic Traffic Traffic Traffic DSCP 46 24, 26 48 56 CoS 5 3 6 7 CoS-to devices running the Cisco ...
...Queue Expedite 70% WRR 20% WRR 10% WRR Queue Number 4 3 2 1 CoS-to-Queue Map 5 3, 6, 7 2, 4 0,1 Queue Weight - 70 percent 20 percent 10 percent 30-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 78-11380-10 Table 30-2 Traffic Types, Packet Labels, and ...Egress Queues VoIP1 Data VoIP Control Routing Protocol STP BPDU2 Traffic Traffic Traffic Traffic DSCP 46 24, 26 48 56 CoS 5 3 6 7 CoS-to devices running the Cisco ...
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... qos voip trust interface configuration command on a port connected to the interior of the network, the switch trusts the CoS value in Table 30-3. Switch(config-if)# mls qos trust device cisco-phone 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-11 For information about the trusted boundary feature, see the "Configuring Trusted...
... qos voip trust interface configuration command on a port connected to the interior of the network, the switch trusts the CoS value in Table 30-3. Switch(config-if)# mls qos trust device cisco-phone 78-11380-10 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-11 For information about the trusted boundary feature, see the "Configuring Trusted...
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... 7 select queue 3. • CoS value 5 selects queue 4 (expedite queue). Switch(config-if)# service-policy input AutoQoS-Police-SoftPhone The switch automatically assigns egress queue usage (as shown in Table 30-3 on page 30-10) on which auto-QoS with the Cisco SoftPhone feature is serviced until empty. 30-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide...
... 7 select queue 3. • CoS value 5 selects queue 4 (expedite queue). Switch(config-if)# service-policy input AutoQoS-Police-SoftPhone The switch automatically assigns egress queue usage (as shown in Table 30-3 on page 30-10) on which auto-QoS with the Cisco SoftPhone feature is serviced until empty. 30-12 Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide...
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...default port trust state set (untrusted), follow these global configuration commands: • no wrr-queue bandwidth • no wrr-queue cos-map • no auto qos voip interface configuration command on all interfaces on which auto-QoS is enabled. For more information, ...Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-15 This example shows how to enable auto-QoS and to trust the QoS labels in incoming packets when the device connected to the interface is detected as a Cisco IP Phone: Switch(config)# interface fastethernet0/1 Switch(config-if)# auto qos voip cisco...
...default port trust state set (untrusted), follow these global configuration commands: • no wrr-queue bandwidth • no wrr-queue cos-map • no auto qos voip interface configuration command on all interfaces on which auto-QoS is enabled. For more information, ...Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 30-15 This example shows how to enable auto-QoS and to trust the QoS labels in incoming packets when the device connected to the interface is detected as a Cisco IP Phone: Switch(config)# interface fastethernet0/1 Switch(config-if)# auto qos voip cisco...