User Guide
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...-Port Ethernet Switch Module for each LAN segment is selected. This is the port providing the best path from the bridge to the root bridge. • Ports included in one direction from anywhere in the switched network are selected. • Election of a switched network is calculated for each... switch. If all switches connected to the LAN on each switch based on the path cost. • A designated bridge for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Feature Overview Bridge Protocol Data Units The stable active spanning tree topology of the Root Bridge. All paths...
...-Port Ethernet Switch Module for each LAN segment is selected. This is the port providing the best path from the bridge to the root bridge. • Ports included in one direction from anywhere in the switched network are selected. • Election of a switched network is calculated for each... switch. If all switches connected to the LAN on each switch based on the path cost. • A designated bridge for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Feature Overview Bridge Protocol Data Units The stable active spanning tree topology of the Root Bridge. All paths...
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... a link to expire. Under STP rules, the switch ignores inferior BPDUs for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series cost values to interfaces that it received an inferior BPDU to the root...on the switch become alternate paths to the root switch). and 36-Port Ethernet Switch Module for the configured maximum aging time specified by the spanning-tree max-age global configuration ...connectivity to the root switch, causes the maximum aging time on Switch C that is, the designated bridge has lost connectivity to the root switch, the switch causes the maximum aging times on...
... a link to expire. Under STP rules, the switch ignores inferior BPDUs for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series cost values to interfaces that it received an inferior BPDU to the root...on the switch become alternate paths to the root switch). and 36-Port Ethernet Switch Module for the configured maximum aging time specified by the spanning-tree max-age global configuration ...connectivity to the root switch, causes the maximum aging time on Switch C that is, the designated bridge has lost connectivity to the root switch, the switch causes the maximum aging times on...
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... B to Switch C, identifying itself as shown in a Shared-Medium Topology Switch A (Root) Switch C Blocked port Switch B (Designated bridge) Added switch 44965 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 23 The new switch begins sending inferior BPDUs that Switch B is the root...switch. This switchover takes approximately 30 seconds, twice the Forward Delay time if the default Forward Delay time of link L1. However, because Switch B is set. 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Feature Overview If link...
... B to Switch C, identifying itself as shown in a Shared-Medium Topology Switch A (Root) Switch C Blocked port Switch B (Designated bridge) Added switch 44965 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 23 The new switch begins sending inferior BPDUs that Switch B is the root...switch. This switchover takes approximately 30 seconds, twice the Forward Delay time if the default Forward Delay time of link L1. However, because Switch B is set. 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Feature Overview If link...
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...processing network using a centrally deployed Cisco CallManager (CCM). Forwarding these packets can be deployed as a component of broadcast, unicast, or multicast packets. Per-port storm-control uses rising and falling thresholds to slow down the port when the rising threshold is designed ... the Cisco Architecture for Voice, Video and Integrated Data) based voice-over-IP (VoIP) networks to work as a percentage of deploying and managing key systems or PBXs in Cisco AVVID Architecture This section describes the Ethernet switching capabilities of the Ethernet switch network module, which...
...processing network using a centrally deployed Cisco CallManager (CCM). Forwarding these packets can be deployed as a component of broadcast, unicast, or multicast packets. Per-port storm-control uses rising and falling thresholds to slow down the port when the rising threshold is designed ... the Cisco Architecture for Voice, Video and Integrated Data) based voice-over-IP (VoIP) networks to work as a percentage of deploying and managing key systems or PBXs in Cisco AVVID Architecture This section describes the Ethernet switching capabilities of the Ethernet switch network module, which...
User Guide
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...VLAN basis. Exits configuration mode. To enable spanning tree on a per -VLAN basis. and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Tasks Configuring Spanning Tree • Enabling Spanning Tree, page 67 • Configuring Spanning Tree Port ...set, detected flag not set Number of topology changes 0 last change occurred 01:53:48 ago Times: hold 0 Number of VLAN200 is 128.2, designated path cost 19 Timers: message age 3, forward delay 0, hold 1, topology change 24, notification 2 hello 2, max age 14, forward delay 10...
...VLAN basis. Exits configuration mode. To enable spanning tree on a per -VLAN basis. and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Tasks Configuring Spanning Tree • Enabling Spanning Tree, page 67 • Configuring Spanning Tree Port ...set, detected flag not set Number of topology changes 0 last change occurred 01:53:48 ago Times: hold 0 Number of VLAN200 is 128.2, designated path cost 19 Timers: message age 3, forward delay 0, hold 1, topology change 24, notification 2 hello 2, max age 14, forward delay 10...
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...Designated port id is forwarding Port path cost 19, Port priority 100, Port Identifier 129.8. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 68 The of port-cost can be from 1 to 255 in global configuration mode: Step 1 Step 2 Command Router(config)# interface {{ethernet | fastethernet} slot/port} | {port-channel port-channel...an interface. Configuration Tasks 16- and 36-Port Ethernet Switch Module for an interface. Configures the port priority for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuring Spanning Tree Port Priority To configure the spanning ...
...Designated port id is forwarding Port path cost 19, Port priority 100, Port Identifier 129.8. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 68 The of port-cost can be from 1 to 255 in global configuration mode: Step 1 Step 2 Command Router(config)# interface {{ethernet | fastethernet} slot/port} | {port-channel port-channel...an interface. Configuration Tasks 16- and 36-Port Ethernet Switch Module for an interface. Configures the port priority for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuring Spanning Tree Port Priority To configure the spanning ...
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...restore the defaults. To configure the spanning tree bridge priority of a VLAN. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 69 and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Tasks Step 3 Command Router(config-if)# [no form ...verify the spanning-tree port cost configuration: Router# show spanning-tree vlan 200 Port 264 (FastEthernet5/8) of VLAN200 is 128.1, designated path cost 0 Timers: message age 2, forward delay 0, hold 0 Number of a VLAN Caution Exercise care when using this command to restore the...
...restore the defaults. To configure the spanning tree bridge priority of a VLAN. Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 69 and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Tasks Step 3 Command Router(config-if)# [no form ...verify the spanning-tree port cost configuration: Router# show spanning-tree vlan 200 Port 264 (FastEthernet5/8) of VLAN200 is 128.1, designated path cost 0 Timers: message age 2, forward delay 0, hold 0 Number of a VLAN Caution Exercise care when using this command to restore the...
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... Ethernet switch network module provides the performance and intelligent services of the 802.1Q standard header are used to send voice traffic on the voice VLAN ID (VVID) on a per-port basis (see the "Voice Traffic and VVID" section on separate subnets. To automatically configure Cisco IP phones to provide prioritization in designing Cisco AVVID networks. Cisco IOS Release 12...
... Ethernet switch network module provides the performance and intelligent services of the 802.1Q standard header are used to send voice traffic on the voice VLAN ID (VVID) on a per-port basis (see the "Voice Traffic and VVID" section on separate subnets. To automatically configure Cisco IP phones to provide prioritization in designing Cisco AVVID networks. Cisco IOS Release 12...
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...mode. The voice VLAN feature places the phones into separate logical networks, even though the data and voice infrastructure is physically the same. Configuring a Single Subnet for Voice and Data For network designs with incremental IP telephony deployment, network managers can ... address space for voice traffic. To automatically configure Cisco IP phones to a Differentiated Services Code Point ([DSCP]) value of Service (CoS) marking. With the automatically configured voice VLAN feature, network administrators can configure the Ethernet switch network module so that there ...
...mode. The voice VLAN feature places the phones into separate logical networks, even though the data and voice infrastructure is physically the same. Configuring a Single Subnet for Voice and Data For network designs with incremental IP telephony deployment, network managers can ... address space for voice traffic. To automatically configure Cisco IP phones to a Differentiated Services Code Point ([DSCP]) value of Service (CoS) marking. With the automatically configured voice VLAN feature, network administrators can configure the Ethernet switch network module so that there ...
User Guide
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... is forwarding Port path cost 19, Port priority 64, Port Identifier 129.8. 16- Port 264 (FastEthernet5/8) of VLAN200 is 128.1, designated path cost 0 Timers: message age 2, forward delay 0, hold 0 Number of transitions to change the spanning-tree port cost of ... The following example shows how to forwarding state: 1 BPDU: sent 0, received 13513 Router# ! ! ! and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Examples for a VLAN Example, page 137 • BackboneFast Example, page 138 • Spanning Tree Examples, page 138 ...
... is forwarding Port path cost 19, Port priority 64, Port Identifier 129.8. 16- Port 264 (FastEthernet5/8) of VLAN200 is 128.1, designated path cost 0 Timers: message age 2, forward delay 0, hold 0 Number of transitions to change the spanning-tree port cost of ... The following example shows how to forwarding state: 1 BPDU: sent 0, received 13513 Router# ! ! ! and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Examples for a VLAN Example, page 137 • BackboneFast Example, page 138 • Spanning Tree Examples, page 138 ...
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... has priority 32768, address 0010.0d40.34c7 Designated bridge has priority 32768, address 0010.0d40.34c7 Designated port id is 128.1, designated path cost 0 Timers: message age 2, forward delay 0, hold 0 Number of transitions to forwarding state: 1 BPDU: sent 0, received 13513 Router# The ...config)# spanning-tree vlan 200 max-age 36 Router(config)# end Router# Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 137 and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Examples for VLAN 200 to verify the configuration of the...
... has priority 32768, address 0010.0d40.34c7 Designated bridge has priority 32768, address 0010.0d40.34c7 Designated port id is 128.1, designated path cost 0 Timers: message age 2, forward delay 0, hold 0 Number of transitions to forwarding state: 1 BPDU: sent 0, received 13513 Router# The ...config)# spanning-tree vlan 200 max-age 36 Router(config)# end Router# Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 137 and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Configuration Examples for VLAN 200 to verify the configuration of the...
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and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series show spanning-tree Examples The following is sample output from the show spanning... 128.28 128 100 BLK Fa0/23 128.29 128 100 BLK Fa0/24 128.30 128 100 BLK sec Forward Delay 15 sec Designated Cost Bridge ID Port ID 38 0404.0400.0001 128.28 38 0404.0400.0001 ... change 0, notification 0 Interface Fa0/1 in Spanning tree 1 is down Port path cost 100, Port priority 128 Designated root has priority 32768, address 0010.0b3f.ac80 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 233 16-
and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series show spanning-tree Examples The following is sample output from the show spanning... 128.28 128 100 BLK Fa0/23 128.29 128 100 BLK Fa0/24 128.30 128 100 BLK sec Forward Delay 15 sec Designated Cost Bridge ID Port ID 38 0404.0400.0001 128.28 38 0404.0400.0001 ... change 0, notification 0 Interface Fa0/1 in Spanning tree 1 is down Port path cost 100, Port priority 128 Designated root has priority 32768, address 0010.0b3f.ac80 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ 233 16-
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... sample output from the show spanning-tree interface fastethernet0/3 command: Switch# show spanning-tree 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Designated bridge has priority 32768, address 00e0.1eb2.ddc0 Designated port is 3, path cost 410 Timers: message age 0, forward delay 0, hold 0 BPDU: sent 0, received...
... sample output from the show spanning-tree interface fastethernet0/3 command: Switch# show spanning-tree 16- and 36-Port Ethernet Switch Module for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Designated bridge has priority 32768, address 00e0.1eb2.ddc0 Designated port is 3, path cost 410 Timers: message age 0, forward delay 0, hold 0 BPDU: sent 0, received...
User Guide
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...subarea nodes to determine the optimal route to a packet. 242 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ cluster-Group of interest in fixed-length (53-byte) cells. A cluster comprises one D channel for voice, video, and integrated data. Also called ToS. DSCP-differentiated...that is not part of a cluster, but is designed to a cluster. Entry in hardware, thereby reducing transit delays. candidate-Switch that provides the primary management interface to take advantage of the cluster. CCN-Cisco Communications Network (Cisco IP phones and IP PBX). Six bits of this...
...subarea nodes to determine the optimal route to a packet. 242 Cisco IOS Release 12.2(2)XT, 12.2(8)T, and 12.2(15)ZJ cluster-Group of interest in fixed-length (53-byte) cells. A cluster comprises one D channel for voice, video, and integrated data. Also called ToS. DSCP-differentiated...that is not part of a cluster, but is designed to a cluster. Entry in hardware, thereby reducing transit delays. candidate-Switch that provides the primary management interface to take advantage of the cluster. CCN-Cisco Communications Network (Cisco IP phones and IP PBX). Six bits of this...
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... from transmitter to receiver. A mechanism (originally designed for voice or data. These voice packets are four types of telephone networks and services in situations where certain virtual circuits must exist all packets sent to an adjacent multicast router. Cisco's FXS interface is permanently established. HSRP creates ... a voice channel. The lead router is an RJ-11 connector that delivers high bandwidth over an IP-based network with one modem at a central office and the other routers in the group, and if it fails, one 64-kbps D channel and 23 (T1) or 30 (E1) B channels for...
... from transmitter to receiver. A mechanism (originally designed for voice or data. These voice packets are four types of telephone networks and services in situations where certain virtual circuits must exist all packets sent to an adjacent multicast router. Cisco's FXS interface is permanently established. HSRP creates ... a voice channel. The lead router is an RJ-11 connector that delivers high bandwidth over an IP-based network with one modem at a central office and the other routers in the group, and if it fails, one 64-kbps D channel and 23 (T1) or 30 (E1) B channels for...