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... Changing the Hello BPDU Interval 6-43 Changing the Forwarding Delay Time 6-43 STP Port States 6-44 Enabling the Port Fast Feature 6-44 Changing the Path Cost 6-45 Changing the Port Priority 6-45 Configuring STP Root Guard 6-46 Configuring BPDU Guard 6-47 Configuring SNMP 6-48 Disabling and Enabling SNMP 6-48 Entering Community...
... Changing the Hello BPDU Interval 6-43 Changing the Forwarding Delay Time 6-43 STP Port States 6-44 Enabling the Port Fast Feature 6-44 Changing the Path Cost 6-45 Changing the Port Priority 6-45 Configuring STP Root Guard 6-46 Configuring BPDU Guard 6-47 Configuring SNMP 6-48 Disabling and Enabling SNMP 6-48 Entering Community...
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... Load Sharing Using STP 8-32 Load Sharing Using STP Port Priorities 8-32 Configuring STP Port Priorities and Load Sharing 8-33 Load Sharing Using STP Path Cost 8-34 Contents Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide xi
... Load Sharing Using STP 8-32 Load Sharing Using STP Port Priorities 8-32 Configuring STP Port Priorities and Load Sharing 8-33 Load Sharing Using STP Path Cost 8-34 Contents Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide xi
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...register/ If you cannot resolve your company is recommended that are assigned when severe network degradation significantly impacts business operations. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password...Cisco TAC Web Site. To access the Cisco TAC Web Site, go to determine the level of toll-free Cisco TAC telephone numbers for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). The site provides around-the-clock access to resolve P3 and P4 issues yourself, saving both cost...
...register/ If you cannot resolve your company is recommended that are assigned when severe network degradation significantly impacts business operations. The Cisco TAC Web Site requires a Cisco.com login ID and password. If you have a valid service contract but do not have a login ID or password...Cisco TAC Web Site. To access the Cisco TAC Web Site, go to determine the level of toll-free Cisco TAC telephone numbers for example, SMARTnet, SMARTnet Onsite, or Network Supported Accounts (NSA). The site provides around-the-clock access to resolve P3 and P4 issues yourself, saving both cost...
Software Guide
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... UplinkFast, and BackboneFast for using the Catalyst 2900 XL and Catalyst 3500 XL switches to create the following: • Cost-effective wiring closet-A cost-effective way to connect many users to the wiring closet is to connect up to 432 users. When you use Gigabit... preserve switch connectivity if one of IP connectivity over existing infrastructure (existing telephone lines). Each switch in this with a lower relative port cost is selected to carry the VLAN traffic. Using these Gigabit modules also provides flexibility in media and distance options: - Catalyst 2900 XL...
... UplinkFast, and BackboneFast for using the Catalyst 2900 XL and Catalyst 3500 XL switches to create the following: • Cost-effective wiring closet-A cost-effective way to connect many users to the wiring closet is to connect up to 432 users. When you use Gigabit... preserve switch connectivity if one of IP connectivity over existing infrastructure (existing telephone lines). Each switch in this with a lower relative port cost is selected to carry the VLAN traffic. Using these Gigabit modules also provides flexibility in media and distance options: - Catalyst 2900 XL...
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...: fiber connections of the backbone switches fails, the second backbone switch preserves connectivity between Catalyst 4908G-L3 switches. Figure 1-1 Example Configurations Catalyst 3548 XL switch Cost-Effective Wiring Closet Catalyst 2900 XL and Catalyst 3500 XL GigaStack cluster Catalyst 3508 XL or 4908G-L3 switch High-Performance Workgroup Catalyst 2900 XL...
...: fiber connections of the backbone switches fails, the second backbone switch preserves connectivity between Catalyst 4908G-L3 switches. Figure 1-1 Example Configurations Catalyst 3548 XL switch Cost-Effective Wiring Closet Catalyst 2900 XL and Catalyst 3500 XL GigaStack cluster Catalyst 3508 XL or 4908G-L3 switch High-Performance Workgroup Catalyst 2900 XL...
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... root of the spanning tree; Verify your entries. When UplinkFast is enabled, the bridge priority of all VLANs is set to 49152, and the path cost of all ports and VLAN trunks is placed into the forwarding state in less than 2 seconds under normal network conditions) across the switches at the... for the entire switch and cannot be enabled for individual VLANs. Link A, the root link, is disabled, the bridge priorities of all VLANs and path costs of all the time; If Switch A fails, if its link to the spanning-tree root fails. The switches in the stack use the GigaStack GBICs...
... root of the spanning tree; Verify your entries. When UplinkFast is enabled, the bridge priority of all VLANs is set to 49152, and the path cost of all ports and VLAN trunks is placed into the forwarding state in less than 2 seconds under normal network conditions) across the switches at the... for the entire switch and cannot be enabled for individual VLANs. Link A, the root link, is disabled, the bridge priorities of all VLANs and path costs of all the time; If Switch A fails, if its link to the spanning-tree root fails. The switches in the stack use the GigaStack GBICs...
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... is the best choice as the root port, and it must obtain an acknowledgement from all stack switches are not obtained by comparing STP root, cost, and bridge ID. Each switch in the stack determines if the sending switch is implemented on the sending switch immediately transitions its normal rate (2 * forward...
... is the best choice as the root port, and it must obtain an acknowledgement from all stack switches are not obtained by comparing STP root, cost, and bridge ID. Each switch in the stack determines if the sending switch is implemented on the sending switch immediately transitions its normal rate (2 * forward...
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... Software Configuration Guide 78-6511-08 Verify your network. Enter interface configuration mode, and enter the port to an STP forwarding state. • Path Cost-A lower path cost represents higher-speed transmission. Enter a number from a blocking state into a forwarding state. Enable the Port Fast feature for a port. A higher number has higher priority...
... Software Configuration Guide 78-6511-08 Verify your network. Enter interface configuration mode, and enter the port to an STP forwarding state. • Path Cost-A lower path cost represents higher-speed transmission. Enter a number from a blocking state into a forwarding state. Enable the Port Fast feature for a port. A higher number has higher priority...
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...1 Step 2 Step 3 Command configure terminal interface interface spanning-tree [vlan stp-list] cost cost Step 4 end Step 5 show running -config Purpose Enter global configuration mode. Configure the path cost for a specified instance of VLANs to privileged EXEC mode. Verify your entry. 78-6511...a number from 0 to be configured. Chapter 6 Configuring the System Configuring STP Changing the Path Cost Beginning in privileged EXEC mode, follow these steps to change the path cost for STP calculations. The STP command applies to be configured. Step 1 Step 2 Step 3 ...
...1 Step 2 Step 3 Command configure terminal interface interface spanning-tree [vlan stp-list] cost cost Step 4 end Step 5 show running -config Purpose Enter global configuration mode. Configure the path cost for a specified instance of VLANs to privileged EXEC mode. Verify your entry. 78-6511...a number from 0 to be configured. Chapter 6 Configuring the System Configuring STP Changing the Path Cost Beginning in privileged EXEC mode, follow these steps to change the path cost for STP calculations. The STP command applies to be configured. Step 1 Step 2 Step 3 ...
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... the trunk port is first created, all ports follow the parameters set for all ports in the group: • Allowed-VLAN list. • STP path cost for each VLAN. • STP port priority for each VLAN. • STP Port Fast setting. • Trunk status: if one of unknown unicast and multicast...
... the trunk port is first created, all ports follow the parameters set for all ports in the group: • Allowed-VLAN list. • STP path cost for each VLAN. • STP port priority for each VLAN. • STP Port Fast setting. • Trunk status: if one of unknown unicast and multicast...
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... XL Software Configuration Guide 78-6511-08 Return to the same switch. For load sharing using STP port priorities or STP path costs. For load sharing using STP path costs, each load-sharing link can set the port priority for untagged (native) Ethernet frames: Step 1 Step 2 Step 3 Command configure terminal interface interface...
... XL Software Configuration Guide 78-6511-08 Return to the same switch. For load sharing using STP port priorities or STP path costs. For load sharing using STP path costs, each load-sharing link can set the port priority for untagged (native) Ethernet frames: Step 1 Step 2 Step 3 Command configure terminal interface interface...
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... trunk port 2. • VLANs 2 through 10 are 100BASE-T ports. In Figure 8-6, trunk ports 1 and 2 are assigned a path cost of 19. Return to privileged EXEC mode. Enter interface configuration mode, and define the interface to set the STP port priority. Return to global...priority of VLANs. Load Sharing Using STP Path Cost You can configure parallel trunks to share VLAN traffic by Path Cost Switch 1 Trunk port 1 VLANs 2 - 4 (path cost 30) VLANs 8 - 10 (path cost 19) Trunk port 2 VLANs 8 - 10 (path cost 30) VLANs 2 - 4 (path cost 19) 16591 Switch 2 8-34 Catalyst 2900 ...
... trunk port 2. • VLANs 2 through 10 are 100BASE-T ports. In Figure 8-6, trunk ports 1 and 2 are assigned a path cost of 19. Return to privileged EXEC mode. Enter interface configuration mode, and define the interface to set the STP port priority. Return to global...priority of VLANs. Load Sharing Using STP Path Cost You can configure parallel trunks to share VLAN traffic by Path Cost Switch 1 Trunk port 1 VLANs 2 - 4 (path cost 30) VLANs 8 - 10 (path cost 19) Trunk port 2 VLANs 8 - 10 (path cost 30) VLANs 2 - 4 (path cost 19) 16591 Switch 2 8-34 Catalyst 2900 ...
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...end show running-config Step 7 show vlan Step 8 configure terminal Step 9 interface fa0/1 Step 10 Step 11 Step 12 spanning-tree vlan 2 3 4 cost 30 end Step 13 exit Step 14 show running-config Purpose Enter global configuration mode on Switch 1. Repeat Steps 2 through 11 on Switch 1 interface Fa0.../2. Set the spanning-tree path cost to configure the network shown in privileged EXEC mode, follow these steps to 30 for interface Fa0/1 and Fa0/2. 78-6511-08 Catalyst...
...end show running-config Step 7 show vlan Step 8 configure terminal Step 9 interface fa0/1 Step 10 Step 11 Step 12 spanning-tree vlan 2 3 4 cost 30 end Step 13 exit Step 14 show running-config Purpose Enter global configuration mode on Switch 1. Repeat Steps 2 through 11 on Switch 1 interface Fa0.../2. Set the spanning-tree path cost to configure the network shown in privileged EXEC mode, follow these steps to 30 for interface Fa0/1 and Fa0/2. 78-6511-08 Catalyst...
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...9-15 system settings 6-1 troubleshooting 9-1 VTP, default 8-15 configuration examples, network 1-8 collapsed backbone and switch cluster 1-13 design concepts cost-effective wiring closet 1-9 high-performance workgroup 1-9 network performance 1-8 network services 1-9 redundant Gigabit backbone 1-10 hotel network 1-17 large campus... 6-13 passwords 6-11 ports 7-1 protected ports 7-9 privilege levels 6-11 RADIUS 6-55 RMON groups 4-5 SNMP 6-48 speed 7-2, 7-3 on Cisco 575 LRE CPE 7-21 static addresses (EtherChannel) 6-20 STP 6-33 BPDU guard 6-47 Cross-stack UplinkFast 6-37 port priorities 8-33 root...
...9-15 system settings 6-1 troubleshooting 9-1 VTP, default 8-15 configuration examples, network 1-8 collapsed backbone and switch cluster 1-13 design concepts cost-effective wiring closet 1-9 high-performance workgroup 1-9 network performance 1-8 network services 1-9 redundant Gigabit backbone 1-10 hotel network 1-17 large campus... 6-13 passwords 6-11 ports 7-1 protected ports 7-9 privilege levels 6-11 RADIUS 6-55 RMON groups 4-5 SNMP 6-48 speed 7-2, 7-3 on Cisco 575 LRE CPE 7-21 static addresses (EtherChannel) 6-20 STP 6-33 BPDU guard 6-47 Cross-stack UplinkFast 6-37 port priorities 8-33 root...
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... link labels 2-16 link pop-up menu, Topology view 2-25 lists, CMS 2-31 load sharing STP, described 8-32 using STP path cost 8-34 using STP port priorities 8-32 login authentication, configuring 6-52 login authentication with RADIUS 6-60 Long-Reach Ethernet See LRE technology LRE-10... LRE ports configuring 7-16 assigning a private profile 7-23 assigning a public profile 7-22 assigning the default profile 7-23 CPE Ethernet links Cisco 575 LRE CPE considerations 7-21 Cisco 585 LRE CPE considerations 7-22 described 7-16, 7-21 duplex mode 7-21 flow control 7-21 speed 7-21 statistics 7-21, 9-5 system...
... link labels 2-16 link pop-up menu, Topology view 2-25 lists, CMS 2-31 load sharing STP, described 8-32 using STP path cost 8-34 using STP port priorities 8-32 login authentication, configuring 6-52 login authentication with RADIUS 6-60 Long-Reach Ethernet See LRE technology LRE-10... LRE ports configuring 7-16 assigning a private profile 7-23 assigning a public profile 7-22 assigning the default profile 7-23 CPE Ethernet links Cisco 575 LRE CPE considerations 7-21 Cisco 585 LRE CPE considerations 7-22 described 7-16, 7-21 duplex mode 7-21 flow control 7-21 speed 7-21 statistics 7-21, 9-5 system...
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... NAT commands, cluster considerations network configuration examples See network examples 1-8 Network Control Protocols See NCPs network examples 1-8 collapsed backbone and switch cluster 1-13 design concepts cost-effective wiring closet 1-9 high-performance workgroup 1-9 network performance 1-8 network services 1-9 redundant Gigabit backbone 1-10 hotel network 1-17 large campus 1-15 IN-14 Catalyst 2900 Series...
... NAT commands, cluster considerations network configuration examples See network examples 1-8 Network Control Protocols See NCPs network examples 1-8 collapsed backbone and switch cluster 1-13 design concepts cost-effective wiring closet 1-9 high-performance workgroup 1-9 network performance 1-8 network services 1-9 redundant Gigabit backbone 1-10 hotel network 1-17 large campus 1-15 IN-14 Catalyst 2900 Series...
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... 8-27 Network Time Protocol See NTP NMS 4-6 See also CMS no commands, using 3-5 no lre profile global command 7-22 nonhomologated POTS splitter See Cisco LRE POTS Splitter (PS-1M-LRE-48) note symbol, definition of xvii notification, MAC address 6-17 NTP authentication 6-13 broadcast-client mode 6-13 ...49 in clusters 5-16, 5-21 in CMS 2-32 recovery of 9-23, 9-24 setting 6-11 TACACS+ server 6-51 VTP domain 8-14 patch panel 1-17 path cost 6-44, 6-45, 8-34 PBX 1-17 PC (passive command switch) 5-12, 5-23 PERF5_HALT_MSG (manufacturing test) system messages A-25 plain old telephone service See POTS...
... 8-27 Network Time Protocol See NTP NMS 4-6 See also CMS no commands, using 3-5 no lre profile global command 7-22 nonhomologated POTS splitter See Cisco LRE POTS Splitter (PS-1M-LRE-48) note symbol, definition of xvii notification, MAC address 6-17 NTP authentication 6-13 broadcast-client mode 6-13 ...49 in clusters 5-16, 5-21 in CMS 2-32 recovery of 9-23, 9-24 setting 6-11 TACACS+ server 6-51 VTP domain 8-14 patch panel 1-17 path cost 6-44, 6-45, 8-34 PBX 1-17 PC (passive command switch) 5-12, 5-23 PERF5_HALT_MSG (manufacturing test) system messages A-25 plain old telephone service See POTS...
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... mode 2-33 read-write access mode 2-33 reconfirmation interval, changing 8-41 reconfirming dynamic VLAN membership 8-40 recovery procedures 9-18 redisplaying commands 3-5 redundancy STP 6-34 path cost 8-34 port priority 8-32 UplinkFast 6-36 redundant clusters See cluster standby group redundant power system See RPS Refresh button 2-31 registors system messages A-33 relay...
... mode 2-33 read-write access mode 2-33 reconfirmation interval, changing 8-41 reconfirming dynamic VLAN membership 8-40 recovery procedures 9-18 redisplaying commands 3-5 redundancy STP 6-34 path cost 8-34 port priority 8-32 UplinkFast 6-36 redundant clusters See cluster standby group redundant power system See RPS Refresh button 2-31 registors system messages A-33 relay...
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... message interval 6-43 configuring 6-33, 6-35 disabling 6-34 forwarding delay timer 6-43 hello BPDU interval 6-43 implementation type 6-42 load sharing overview 8-32 using path costs 8-34 using port priorities 8-32 IN-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-08
... message interval 6-43 configuring 6-33, 6-35 disabling 6-34 forwarding delay timer 6-43 hello BPDU interval 6-43 implementation type 6-42 load sharing overview 8-32 using path costs 8-34 using port priorities 8-32 IN-20 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 78-6511-08
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Index parameters 6-33 path cost changing 6-45 configuring 8-34 Port Fast enabling 6-44 mode 8-38 port grouping parameters 7-8, 8-27 port priority 6-45, 8-33 port states 6-44 redundant connectivity 6-34 redundant ...
Index parameters 6-33 path cost changing 6-45 configuring 8-34 Port Fast enabling 6-44 mode 8-38 port grouping parameters 7-8, 8-27 port priority 6-45, 8-33 port states 6-44 redundant connectivity 6-34 redundant ...