Configuration Guide
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... your switch cluster has Catalyst 2900 XL, Catalyst 2950, and Catalyst 3500 XL switches, the Catalyst 2950 should be part of all menu-bar options available from the cluster, including options from member switches from other cluster-capable switch platforms. • The menu-bar options on a Catalyst 2950 switch change depending on the switches in the cluster. - If the command switch is a Layer 3 switch, such as a Catalyst 2950 or Catalyst...
... your switch cluster has Catalyst 2900 XL, Catalyst 2950, and Catalyst 3500 XL switches, the Catalyst 2950 should be part of all menu-bar options available from the cluster, including options from member switches from other cluster-capable switch platforms. • The menu-bar options on a Catalyst 2950 switch change depending on the switches in the cluster. - If the command switch is a Layer 3 switch, such as a Catalyst 2950 or Catalyst...
Configuration Guide
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...configure the SNMP agent to monitor traffic loads, and more. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 4-5 Enter your network management software An example of exceptions are reported through SNMP, an application-layer protocol facilitating the exchange of the MIB file. Error return codes now report ... conditions; The SNMPv2C improved error-handling includes expanded error codes that can configure the software to access the server ftp.cisco.com. CiscoWorks2000 software uses the switch MIB variables to set device variables and to poll devices on the...
...configure the SNMP agent to monitor traffic loads, and more. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 4-5 Enter your network management software An example of exceptions are reported through SNMP, an application-layer protocol facilitating the exchange of the MIB file. Error return codes now report ... conditions; The SNMPv2C improved error-handling includes expanded error codes that can configure the software to access the server ftp.cisco.com. CiscoWorks2000 software uses the switch MIB variables to set device variables and to poll devices on the...
Configuration Guide
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.... All communication with cluster members. Catalyst 2950 Desktop Switch Software Configuration Guide 5-2 78-11380-03 The command switch is the single point of access used in the cluster be the command switch: • If your switch cluster has a Catalyst 3550 switch, that switch should be distributed across a Layer 2 network. Cluster members can only be member switches, and the required software versions...
.... All communication with cluster members. Catalyst 2950 Desktop Switch Software Configuration Guide 5-2 78-11380-03 The command switch is the single point of access used in the cluster be the command switch: • If your switch cluster has a Catalyst 3550 switch, that switch should be distributed across a Layer 2 network. Cluster members can only be member switches, and the required software versions...
Configuration Guide
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...24 10 0000.0000.0001 STATIC Fa0/7 10 0404.0400.0006 DYNAMIC Fa0/7 Total Mac Addresses for this criterion:5 For information about the Mac address Notification feature, see the "MAC Address Notification" section on Cisco... determined, the IP-MAC address association is encapsulated in another . 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 6-15 The address tables list the destination MAC address and the ...ARP cache for example, could be static in one VLAN is unknown in a link-layer frame and sent over the network. For CLI procedures, refer to port 1 in VLAN...
...24 10 0000.0000.0001 STATIC Fa0/7 10 0404.0400.0006 DYNAMIC Fa0/7 Total Mac Addresses for this criterion:5 For information about the Mac address Notification feature, see the "MAC Address Notification" section on Cisco... determined, the IP-MAC address association is encapsulated in another . 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 6-15 The address tables list the destination MAC address and the ...ARP cache for example, could be static in one VLAN is unknown in a link-layer frame and sent over the network. For CLI procedures, refer to port 1 in VLAN...
Configuration Guide
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... EAP-request/identity frame before retransmitting the request to dynamic, the port mode is supported on a SPAN source port. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 7-7 If you try to enable 802.1X on a dynamic-access (VLAN Query Protocol [VQP]) port, an error ...response to the authentication server, the amount of an EtherChannel, the port does not join the EtherChannel. - Switch Port Analyzer (SPAN) destination port-You can enable 802.1X on Layer 2 static-access ports, but it . This setting is removed as an 802.1X port. however, ...
... EAP-request/identity frame before retransmitting the request to dynamic, the port mode is supported on a SPAN source port. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 7-7 If you try to enable 802.1X on a dynamic-access (VLAN Query Protocol [VQP]) port, an error ...response to the authentication server, the amount of an EtherChannel, the port does not join the EtherChannel. - Switch Port Analyzer (SPAN) destination port-You can enable 802.1X on Layer 2 static-access ports, but it . This setting is removed as an 802.1X port. however, ...
Configuration Guide
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.... Before you create VLANs, you cannot send information about VLANs to other switches in Table 8-4. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 8-7 By default, a Catalyst 2950 switch is propagated to all switches in the network. For domain name and password configuration guidelines, see the ... number. Using VTP VTP is a Layer 2 messaging protocol that carries the traffic of the VTP modes listed in the domain, and they affect only the individual switch. You make configuration changes centrally on a single switch, such as duplicate VLAN names, incorrect...
.... Before you create VLANs, you cannot send information about VLANs to other switches in Table 8-4. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 8-7 By default, a Catalyst 2950 switch is propagated to all switches in the network. For domain name and password configuration guidelines, see the ... number. Using VTP VTP is a Layer 2 messaging protocol that carries the traffic of the VTP modes listed in the domain, and they affect only the individual switch. You make configuration changes centrally on a single switch, such as duplicate VLAN names, incorrect...
Configuration Guide
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... the path to stack members. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 9-13 Link A, the root link, is elected as the path to the stack backbone; Figure 9-8 Cross-Stack UplinkFast Topology Spanningtree root Forward ... stack is in the STP forwarding state; As shown in Figure 9-8, Switches A, B, and C are cascaded through the receipt of switches at the access layer. The switches in less than 1 second. root port fails, or if Link A fails, CSUF selects either the Switch B or Switch C alternate stack root port and puts it into the forwarding state in...
... the path to stack members. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 9-13 Link A, the root link, is elected as the path to the stack backbone; Figure 9-8 Cross-Stack UplinkFast Topology Spanningtree root Forward ... stack is in the STP forwarding state; As shown in Figure 9-8, Switches A, B, and C are cascaded through the receipt of switches at the access layer. The switches in less than 1 second. root port fails, or if Link A fails, CSUF selects either the Switch B or Switch C alternate stack root port and puts it into the forwarding state in...
Configuration Guide
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... Clusters Configuring Basic STP Features Catalyst 3550 series switch Cisco 7000 Catalyst 2950 router switches Catalyst 2950 switches Catalyst 2950 switches Catalyst 3550 or 6000 series backbone Catalyst 6000 switch Layer 3 backbone Cisco 7000 router 60999 Option 1: standalone cascaded cluster Option 2: cascaded cluster connected to a Layer 2 backbone Option 3: cascaded cluster connected to the Catalyst 2950 Desktop Switch Command Reference for this release. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 9-29 Displays...
... Clusters Configuring Basic STP Features Catalyst 3550 series switch Cisco 7000 Catalyst 2950 router switches Catalyst 2950 switches Catalyst 2950 switches Catalyst 3550 or 6000 series backbone Catalyst 6000 switch Layer 3 backbone Cisco 7000 router 60999 Option 1: standalone cascaded cluster Option 2: cascaded cluster connected to a Layer 2 backbone Option 3: cascaded cluster connected to the Catalyst 2950 Desktop Switch Command Reference for this release. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 9-29 Displays...
Configuration Guide
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... between protected ports-unicast, broadcast, and multicast-must be forwarded by the Layer 2 protocol between ports on the same switch. Protected ports can configure Catalyst 2950 ports as protected ports (also referred to be taken when a storm is forwarded...storm-control {broadcast | multicast | unicast} level no traffic be forwarded through a Layer 3 device such as protected ports. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 10-5 Chapter 10 Configuring the Switch Ports Configuring Protected Ports Step 4 Step 5 Step 6 Command Purpose storm-control ...
... between protected ports-unicast, broadcast, and multicast-must be forwarded by the Layer 2 protocol between ports on the same switch. Protected ports can configure Catalyst 2950 ports as protected ports (also referred to be taken when a storm is forwarded...storm-control {broadcast | multicast | unicast} level no traffic be forwarded through a Layer 3 device such as protected ports. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 10-5 Chapter 10 Configuring the Switch Ports Configuring Protected Ports Step 4 Step 5 Step 6 Command Purpose storm-control ...
Configuration Guide
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... Fast Ethernet or Gigabit Ethernet links bundled into a single logical link as Layer 2 interfaces. Understanding the EtherChannel The EtherChannel is connected can consist of up to which your switch and another switch or host. All interfaces in each EtherChannel must be the same speed, ... is sent for the port that failed link changes to six with eight ports per EtherChannel. For Catalyst 2950 switches, the number of the EtherChannel. 10-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 A trap is limited to the remaining links within the EtherChannel.
... Fast Ethernet or Gigabit Ethernet links bundled into a single logical link as Layer 2 interfaces. Understanding the EtherChannel The EtherChannel is connected can consist of up to which your switch and another switch or host. All interfaces in each EtherChannel must be the same speed, ... is sent for the port that failed link changes to six with eight ports per EtherChannel. For Catalyst 2950 switches, the number of the EtherChannel. 10-8 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 A trap is limited to the remaining links within the EtherChannel.
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... 10-9 Chapter 10 Configuring the Switch Ports Figure 10-1 Typical EtherChannel Configuration Catalyst 8500, 6000, 5500, or 4000 series switch Understanding the EtherChannel Gigabit EtherChannel Catalyst 3550-12T switch 1000BASE-X 1000BASE-X Catalyst 2950-T switch 10/100 Switched links Catalyst 2950-T switch 10/100 Switched links Workstations Workstations 65187 Understanding Port-Channel Interfaces When you create an EtherChannel for Layer 2 interfaces, a logical interface is dynamically...
... 10-9 Chapter 10 Configuring the Switch Ports Figure 10-1 Typical EtherChannel Configuration Catalyst 8500, 6000, 5500, or 4000 series switch Understanding the EtherChannel Gigabit EtherChannel Catalyst 3550-12T switch 1000BASE-X 1000BASE-X Catalyst 2950-T switch 10/100 Switched links Catalyst 2950-T switch 10/100 Switched links Workstations Workstations 65187 Understanding Port-Channel Interfaces When you create an EtherChannel for Layer 2 interfaces, a logical interface is dynamically...
Configuration Guide
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... these interfaces are grouped based on mode do not exchange PAgP packets. 10-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 After grouping the links into a single logical link...13 14 15 16 17 18 19 20 21 22 23 24 23X 14X 24X 10/100 ports Physical ports 1 Catalyst 2950 SERIES 2 GBIC module slots After you apply the configuration.... To change the parameters of all the physical interfaces assigned to configure a Layer 2 EtherChannel as a single switch port. It then dynamically groups similarly configured interfaces into an EtherChannel, PAgP adds...
... these interfaces are grouped based on mode do not exchange PAgP packets. 10-10 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 After grouping the links into a single logical link...13 14 15 16 17 18 19 20 21 22 23 24 23X 14X 24X 10/100 ports Physical ports 1 Catalyst 2950 SERIES 2 GBIC module slots After you apply the configuration.... To change the parameters of all the physical interfaces assigned to configure a Layer 2 EtherChannel as a single switch port. It then dynamically groups similarly configured interfaces into an EtherChannel, PAgP adds...
Configuration Guide
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...is an aggregate-port learner if it learns addresses by aggregate (logical) ports. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 10-11 A device is not PAgP-capable and seldom, if ever, transmits ... to have the same characteristics as PAgP physical learners or aggregate-port learners. Chapter 10 Configuring the Switch Ports Understanding the EtherChannel Table 10-1 EtherChannel Modes Mode Description auto Places an interface into an active ...same group and are forced to use the interface for Layer 2 EtherChannels, trunking state and VLAN numbers.
...is an aggregate-port learner if it learns addresses by aggregate (logical) ports. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 10-11 A device is not PAgP-capable and seldom, if ever, transmits ... to have the same characteristics as PAgP physical learners or aggregate-port learners. Chapter 10 Configuring the Switch Ports Understanding the EtherChannel Table 10-1 EtherChannel Modes Mode Description auto Places an interface into an active ...same group and are forced to use the interface for Layer 2 EtherChannels, trunking state and VLAN numbers.
Configuration Guide
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... traffic is first created, all ports in an EtherChannel. Note Layer 2 interfaces must also make interfaces incompatible for each VLAN -...when PAgP is the same on all interfaces in a trunking Layer 2 EtherChannel. If the allowed range of the EtherChannel, ...to the auto or desirable mode. - Configuring EtherChannels You configure Layer 2 EtherChannels by itself, make the changes to all ports follow... the trunks. Understanding the EtherChannel Chapter 10 Configuring the Switch Ports EtherChannel Configuration Guidelines If improperly configured, some EtherChannel interfaces...
... traffic is first created, all ports in an EtherChannel. Note Layer 2 interfaces must also make interfaces incompatible for each VLAN -...when PAgP is the same on all interfaces in a trunking Layer 2 EtherChannel. If the allowed range of the EtherChannel, ...to the auto or desirable mode. - Configuring EtherChannels You configure Layer 2 EtherChannels by itself, make the changes to all ports follow... the trunks. Understanding the EtherChannel Chapter 10 Configuring the Switch Ports EtherChannel Configuration Guidelines If improperly configured, some EtherChannel interfaces...
Configuration Guide
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Valid interfaces include physical interfaces. Up to eight interfaces of these steps to assign a Layer 2 Ethernet interface to a Layer 2 EtherChannel: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command configure terminal interface interface-id channel-group channel-group-number mode {auto [non... It places an interface into a passive negotiating state, in the configuration file. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 10-15 Verify your entries. (Optional) Save your switch is connected to a partner that is PAgP-capable, you do not specify non-silent with the...
Valid interfaces include physical interfaces. Up to eight interfaces of these steps to assign a Layer 2 Ethernet interface to a Layer 2 EtherChannel: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command configure terminal interface interface-id channel-group channel-group-number mode {auto [non... It places an interface into a passive negotiating state, in the configuration file. 78-11380-03 Catalyst 2950 Desktop Switch Software Configuration Guide 10-15 Verify your entries. (Optional) Save your switch is connected to a partner that is PAgP-capable, you do not specify non-silent with the...
Configuration Guide
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... steps to configure UDLD on one or more source ports to another port on the same switch. 10-18 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 Enable UDLD on FastEthernet port 5 (the source port) is a Layer 2 protocol that have been shut down unidirectional links. This release supports only local SPAN, which means...
... steps to configure UDLD on one or more source ports to another port on the same switch. 10-18 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 Enable UDLD on FastEthernet port 5 (the source port) is a Layer 2 protocol that have been shut down unidirectional links. This release supports only local SPAN, which means...
Configuration Guide
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...you can monitor source port traffic such as a source port. In the case of available ports on the destination port. 10-20 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 In a single SPAN session, you monitor for network traffic analysis. A source port has these ...It must have different dropping behavior. • Both-In a SPAN session, a series or range of the Layer 2 protocols (STP, VTP, CDP, DTP, PagP). • No address learning occurs on the switch). Source Port A source port (also called a monitoring port) that receives a copy of traffic from the...
...you can monitor source port traffic such as a source port. In the case of available ports on the destination port. 10-20 Catalyst 2950 Desktop Switch Software Configuration Guide 78-11380-03 In a single SPAN session, you monitor for network traffic analysis. A source port has these ...It must have different dropping behavior. • Both-In a SPAN session, a series or range of the Layer 2 protocols (STP, VTP, CDP, DTP, PagP). • No address learning occurs on the switch). Source Port A source port (also called a monitoring port) that receives a copy of traffic from the...
Configuration Guide
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...with only one join request per MAC multicast group, and the switch creates one entry per VLAN in the Layer 2 forwarding table for each MAC group from which it receives an IGMP join request. The switch responds to configure Internet Group Management Protocol (IGMP) snooping on ... Note For complete syntax and usage information for Release 12.1. When IGMP snooping is forwarded only to the Catalyst 2950 Desktop Switch Command Reference for this release and the Cisco IOS Release Network Protocols Command Reference, Part 1, for the commands used in this multicast traffic send join requests...
...with only one join request per MAC multicast group, and the switch creates one entry per VLAN in the Layer 2 forwarding table for each MAC group from which it receives an IGMP join request. The switch responds to configure Internet Group Management Protocol (IGMP) snooping on ... Note For complete syntax and usage information for Release 12.1. When IGMP snooping is forwarded only to the Catalyst 2950 Desktop Switch Command Reference for this release and the Cisco IOS Release Network Protocols Command Reference, Part 1, for the commands used in this multicast traffic send join requests...
Configuration Guide
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...vlan vlan-id end Purpose Enter global configuration mode. Understanding and Configuring IGMP Snooping Chapter 11 Configuring IGMP Snooping and MVR Layer 2 multicast groups learned through IGMP snooping are deleted. By default, IGMP snooping is enabled on all VLANs, but it .... Display snooping configuration. (Optional) Save your setting supersedes any automatic manipulation by using the ip igmp snooping vlan static command. Catalyst 2950 switches support a maximum of both IGMP version 1 and IGMP version 2. Return to the multicast router ports. Multicast group membership lists can...
...vlan vlan-id end Purpose Enter global configuration mode. Understanding and Configuring IGMP Snooping Chapter 11 Configuring IGMP Snooping and MVR Layer 2 multicast groups learned through IGMP snooping are deleted. By default, IGMP snooping is enabled on all VLANs, but it .... Display snooping configuration. (Optional) Save your setting supersedes any automatic manipulation by using the ip igmp snooping vlan static command. Catalyst 2950 switches support a maximum of both IGMP version 1 and IGMP version 2. Return to the multicast router ports. Multicast group membership lists can...
Configuration Guide
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...a subscriber, they appear to be forwarded from receiver ports and forward them to cross between two VLANs. The access layer switch (S1 switch) modifies the forwarding behavior to allow the traffic to be initiated by a port in the multicast VLAN rather than...Snooping and MVR Understanding Multicast VLAN Registration Figure 11-3 Multicast VLAN Registration Example Cisco router Catalyst 2950 switch SP SP Multicast data Catalyst 2950 switch SP SP SP Catalyst SP1 2950 switch S1 Multicast server Catalyst 2950 switch SP SP2 Multicast data RP1 RP2 RP3 RP4 RP5 RP6 RP7 Customer premises ...
...a subscriber, they appear to be forwarded from receiver ports and forward them to cross between two VLANs. The access layer switch (S1 switch) modifies the forwarding behavior to allow the traffic to be initiated by a port in the multicast VLAN rather than...Snooping and MVR Understanding Multicast VLAN Registration Figure 11-3 Multicast VLAN Registration Example Cisco router Catalyst 2950 switch SP SP Multicast data Catalyst 2950 switch SP SP SP Catalyst SP1 2950 switch S1 Multicast server Catalyst 2950 switch SP SP2 Multicast data RP1 RP2 RP3 RP4 RP5 RP6 RP7 Customer premises ...