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Contents 3 C H A P T E R 4 C H A P T E R Using Command Aliases 2-7 Specifying Modules, Ports, and VLANs 2-7 Specifying MAC Addresses 2-8 Specifying IP Addresses, Host Names, and IP Aliases 2-8 ROM Monitor CLI 2-9 Example of a Catalyst 4003 Bootup Display 2-9 Configuring the Switch IP Address and Default Gateway 3-1 Understanding How the Switch Management Interfaces Work 3-1 Understanding How Automatic IP Configuration Works 3-2 Automatic IP Configuration Overview 3-2 Understanding...
Contents 3 C H A P T E R 4 C H A P T E R Using Command Aliases 2-7 Specifying Modules, Ports, and VLANs 2-7 Specifying MAC Addresses 2-8 Specifying IP Addresses, Host Names, and IP Aliases 2-8 ROM Monitor CLI 2-9 Example of a Catalyst 4003 Bootup Display 2-9 Configuring the Switch IP Address and Default Gateway 3-1 Understanding How the Switch Management Interfaces Work 3-1 Understanding How Automatic IP Configuration Works 3-2 Automatic IP Configuration Overview 3-2 Understanding...
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... PAgP and LACP 6-2 EtherChannel Configuration Guidelines and Restrictions 6-3 Guidelines for Configuring a Port 6-3 Guidelines for Configuring VLANs and Trunks 6-4 EtherChannel Interaction with other Features 6-4 Understanding the PAgP 6-5 PAgP Modes 6-5 Understanding Administrative Groups...Port VLAN Cost 6-9 Removing an EtherChannel Bundle 6-9 Displaying EtherChannel Configuration Information 6-10 Displaying EtherChannel Traffic Statistics 6-11 Displaying EtherChannel PAgP Statistics 6-12 EtherChannel Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches ...
... PAgP and LACP 6-2 EtherChannel Configuration Guidelines and Restrictions 6-3 Guidelines for Configuring a Port 6-3 Guidelines for Configuring VLANs and Trunks 6-4 EtherChannel Interaction with other Features 6-4 Understanding the PAgP 6-5 PAgP Modes 6-5 Understanding Administrative Groups...Port VLAN Cost 6-9 Removing an EtherChannel Bundle 6-9 Displaying EtherChannel Configuration Information 6-10 Displaying EtherChannel Traffic Statistics 6-11 Displaying EtherChannel PAgP Statistics 6-12 EtherChannel Configuration Examples 6-12 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches ...
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...Specifying the Port Priority 6-19 Specifying an Administrative Key Value 6-19 Changing the Channel Mode 6-20 Specifying the Channel Path Cost 6-21 Specifying the Channel VLAN Cost 6-21 Clearing LACP Statistics 6-21 Displaying EtherChannel Traffic Utilization 6-21 Disabling an EtherChannel 6-22 Displaying Spanning Tree-Related Information for EtherChannels 6-22 7 ...Protocol 7-16 MST-to-SST Interoperability 7-17 Common Spanning Tree 7-18 MST Instances 7-18 MST Configuration 7-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 vi 78-15486-01
...Specifying the Port Priority 6-19 Specifying an Administrative Key Value 6-19 Changing the Channel Mode 6-20 Specifying the Channel Path Cost 6-21 Specifying the Channel VLAN Cost 6-21 Clearing LACP Statistics 6-21 Displaying EtherChannel Traffic Utilization 6-21 Disabling an EtherChannel 6-22 Displaying Spanning Tree-Related Information for EtherChannels 6-22 7 ...Protocol 7-16 MST-to-SST Interoperability 7-17 Common Spanning Tree 7-18 MST Instances 7-18 MST Configuration 7-18 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 vi 78-15486-01
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... Maximum Aging Time 7-45 Configuring MST 7-46 Enabling MST 7-46 Mapping and Unmapping VLANs to an MST Instance 7-54 Configuring Spanning Tree BPDU Skewing 7-57 Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard 8-1 Understanding How PortFast Works 8-1 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 vii
... Maximum Aging Time 7-45 Configuring MST 7-46 Enabling MST 7-46 Mapping and Unmapping VLANs to an MST Instance 7-54 Configuring Spanning Tree BPDU Skewing 7-57 Configuring Spanning Tree PortFast, BPDU Guard, BPDU Filter, UplinkFast, BackboneFast, and Loop Guard 8-1 Understanding How PortFast Works 8-1 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 vii
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... a Normal-Range Ethernet VLAN 10-7 Creating or Modifying an Extended-Range VLAN 10-9 Assigning Switch Ports to a VLAN 10-10 Mapping 802.1Q VLANs to ISL VLANs 10-11 Clearing 802.1Q-to-ISL VLAN Mappings 10-12 Deleting a VLAN 10-12 Configuring Auxiliary VLANs 10-13 Understanding Auxiliary VLANs 10-13 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release...
... a Normal-Range Ethernet VLAN 10-7 Creating or Modifying an Extended-Range VLAN 10-9 Assigning Switch Ports to a VLAN 10-10 Mapping 802.1Q VLANs to ISL VLANs 10-11 Clearing 802.1Q-to-ISL VLAN Mappings 10-12 Deleting a VLAN 10-12 Configuring Auxiliary VLANs 10-13 Understanding Auxiliary VLANs 10-13 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release...
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...H A P T E R Configuring Private VLANs 10-16 Private VLAN Configuration Guidelines 10-17 Creating a Private VLAN 10-19 Viewing the Port Capability of a Private VLAN Port 10-22 Deleting a Private VLAN 10-22 Deleting an Isolated or Community VLAN 10-23 Deleting a Private VLAN Mapping 10-23 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports ... VMPS 12-9 Maintaining VMPS 12-9 Configuring Static Ports 12-10 Troubleshooting VMPS and Dynamic Port VLAN Membership 12-11 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 x 78-15486-01
...H A P T E R Configuring Private VLANs 10-16 Private VLAN Configuration Guidelines 10-17 Creating a Private VLAN 10-19 Viewing the Port Capability of a Private VLAN Port 10-22 Deleting a Private VLAN 10-22 Deleting an Isolated or Community VLAN 10-23 Deleting a Private VLAN Mapping 10-23 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports ... VMPS 12-9 Maintaining VMPS 12-9 Configuring Static Ports 12-10 Troubleshooting VMPS and Dynamic Port VLAN Membership 12-11 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 x 78-15486-01
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... 12-11 Troubleshooting Dynamic Ports 12-11 VMPS Example 12-12 Dynamic Port VLAN Membership with Auxiliary VLANs 12-14 Configuration Guidelines 12-15 Configuring Dynamic Port VLAN Membership with Auxiliary VLANs 12-15 Configuring GVRP 13-1 Understanding How GVRP Works 13-1 GVRP Hardware ... Value for the Switch 14-5 Reverting to the Default Switch CoS Value 14-5 Mapping CoS Values to Transmit Queues and Drop Thresholds 14-6 Reverting to the Default CoS-to-Transmit Queue and Drop Threshold Mapping 14-6 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-...
... 12-11 Troubleshooting Dynamic Ports 12-11 VMPS Example 12-12 Dynamic Port VLAN Membership with Auxiliary VLANs 12-14 Configuration Guidelines 12-15 Configuring Dynamic Port VLAN Membership with Auxiliary VLANs 12-15 Configuring GVRP 13-1 Understanding How GVRP Works 13-1 GVRP Hardware ... Value for the Switch 14-5 Reverting to the Default Switch CoS Value 14-5 Mapping CoS Values to Transmit Queues and Drop Thresholds 14-6 Reverting to the Default CoS-to-Transmit Queue and Drop Threshold Mapping 14-6 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-...
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... SPAN Session 26-1 Destination Port 26-2 Source Port 26-2 Reflector Port 26-3 Ingress SPAN 26-3 Egress SPAN 26-3 VSPAN 26-3 Trunk VLAN Filtering 26-4 SPAN Traffic 26-4 SPAN and RSPAN Session Limits 26-4 Configuring SPAN 26-4 Understanding How SPAN Works 26-4 SPAN Configuration Guidelines 26... RSPAN Works 26-8 RSPAN Configuration Guidelines 26-9 Configuring RSPAN 26-10 RSPAN Configuration Examples 26-13 27 C H A P T E R Administering the Switch 27-1 Setting the System Name and System Prompt 27-1 Configuring the System Name and Prompt 27-2 Setting the System Contact and Location 27-3 Setting the...
... SPAN Session 26-1 Destination Port 26-2 Source Port 26-2 Reflector Port 26-3 Ingress SPAN 26-3 Egress SPAN 26-3 VSPAN 26-3 Trunk VLAN Filtering 26-4 SPAN Traffic 26-4 SPAN and RSPAN Session Limits 26-4 Configuring SPAN 26-4 Understanding How SPAN Works 26-4 SPAN Configuration Guidelines 26... RSPAN Works 26-8 RSPAN Configuration Guidelines 26-9 Configuring RSPAN 26-10 RSPAN Configuration Examples 26-13 27 C H A P T E R Administering the Switch 27-1 Setting the System Name and System Prompt 27-1 Configuring the System Name and Prompt 27-2 Setting the System Contact and Location 27-3 Setting the...
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...-2 Authentication Initiation and Message Exchange 31-3 Ports in Authorized and Unauthorized States 31-4 Authentication Server 31-5 802.1x Parameters Configurable on the Switch 31-6 802.1x VLAN Assignment Using a RADIUS Server 31-6 Authentication Default Configuration 31-7 Authentication Configuration Guidelines 31-8 Configuring 802.1x Authentication on the...-End Authenticator-to-Host Frame-Retransmission Number 31-14 Resetting the 802.1x Configuration Parameters to the Default Values 31-15 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xix
...-2 Authentication Initiation and Message Exchange 31-3 Ports in Authorized and Unauthorized States 31-4 Authentication Server 31-5 802.1x Parameters Configurable on the Switch 31-6 802.1x VLAN Assignment Using a RADIUS Server 31-6 Authentication Default Configuration 31-7 Authentication Configuration Guidelines 31-8 Configuring 802.1x Authentication on the...-End Authenticator-to-Host Frame-Retransmission Number 31-14 Resetting the 802.1x Configuration Parameters to the Default Values 31-15 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 xix
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... how to configure protocol filtering on the switch. Configuring Multicast Services Describes how to configure Cisco Group Management Protocol (CGMP), Internet Group...VLANs and private VLANs on the switch. Configuring GVRP Describes how to configure the UniDirectional Link Detection (UDLD) protocol on the switch. Configuring QoS Describes how to check connectivity using ping, Telnet, and IP traceroute. Configuring UDLD Describes how to configure GARP VLAN Registration Protocol (GVRP) on the switch. xxiv Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
... how to configure protocol filtering on the switch. Configuring Multicast Services Describes how to configure Cisco Group Management Protocol (CGMP), Internet Group...VLANs and private VLANs on the switch. Configuring GVRP Describes how to configure the UniDirectional Link Detection (UDLD) protocol on the switch. Configuring QoS Describes how to check connectivity using ping, Telnet, and IP traceroute. Configuring UDLD Describes how to configure GARP VLAN Registration Protocol (GVRP) on the switch. xxiv Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches...
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... Route Switch Module (RSM) and Route Switch Feature Card (RSFC), refer to configure the Catalyst enterprise LAN switches and modules. CH A P T E R 2 Using the Command-Line Interface This chapter describes the command-line interface (CLI) that you use to the Cisco IOS ... and VLANs, page 2-7 • Specifying MAC Addresses, page 2-8 • Specifying IP Addresses, Host Names, and IP Aliases, page 2-8 • ROM Monitor CLI, page 2-9 • Example of all switch and ROM monitor commands, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference...
... Route Switch Module (RSM) and Route Switch Feature Card (RSFC), refer to configure the Catalyst enterprise LAN switches and modules. CH A P T E R 2 Using the Command-Line Interface This chapter describes the command-line interface (CLI) that you use to the Cisco IOS ... and VLANs, page 2-7 • Specifying MAC Addresses, page 2-8 • Specifying IP Addresses, Host Names, and IP Aliases, page 2-8 • ROM Monitor CLI, page 2-9 • Example of all switch and ROM monitor commands, refer to the Catalyst 4500 Series, Catalyst 2948G, and Catalyst 2980G Switches Command Reference...
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...set commands to see this display: Cisco Systems, Inc. To access the switch CLI through the console port, you enter from the CLI might apply to the entire system or to a specific module, port, or VLAN. If the switch is already booted, press Enter ... configuration parameters. Accessing the Switch CLI You can use set and clear commands. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 Accessing the Switch CLI Chapter 2 Using the Command-Line Interface The Catalyst enterprise LAN switches are multi-module systems....
...set commands to see this display: Cisco Systems, Inc. To access the switch CLI through the console port, you enter from the CLI might apply to the entire system or to a specific module, port, or VLAN. If the switch is already booted, press Enter ... configuration parameters. Accessing the Switch CLI You can use set and clear commands. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-2 78-15486-01 Accessing the Switch CLI Chapter 2 Using the Command-Line Interface The Catalyst enterprise LAN switches are multi-module systems....
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... logically the ports are not case sensitive; batch di exit logout Command help configure show quit quit Specifying Modules, Ports, and VLANs The Catalyst 4000 series switches sequentially number modules, ports, and VLANs, beginning with 1. Chapter 2 Using the Command-Line Interface Using Command Aliases Task To scroll down one line To scroll down one...
... logically the ports are not case sensitive; batch di exit logout Command help configure show quit quit Specifying Modules, Ports, and VLANs The Catalyst 4000 series switches sequentially number modules, ports, and VLANs, beginning with 1. Chapter 2 Using the Command-Line Interface Using Command Aliases Task To scroll down one line To scroll down one...
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... in a standard format. IP aliases can use a comma-separated list (do not insert spaces) to specify individual VLANs or a hyphen (-) between the VLAN numbers to designate VLANs and VLAN ranges. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-8 78-15486-01 The IP address format is 32 bits, written in dotted decimal format, as...
... in a standard format. IP aliases can use a comma-separated list (do not insert spaces) to specify individual VLANs or a hyphen (-) between the VLAN numbers to designate VLANs and VLAN ranges. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 2-8 78-15486-01 The IP address format is 32 bits, written in dotted decimal format, as...
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... • Renewing and Releasing a DHCP-Assigned IP Address, page 3-10 Understanding How the Switch Management Interfaces Work The Catalyst 4500 series, the Catalyst 2948G, and the Catalyst 2980G switches have three management interfaces: • In-band interface (sc0) • SLIP interface ... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-1 This chapter consists of a normal switch port, such as spanning tree, Cisco Discovery Protocol (CDP), and VLAN membership. CH A P T E R 3 Configuring the Switch IP Address and ...
... • Renewing and Releasing a DHCP-Assigned IP Address, page 3-10 Understanding How the Switch Management Interfaces Work The Catalyst 4500 series, the Catalyst 2948G, and the Catalyst 2980G switches have three management interfaces: • In-band interface (sc0) • SLIP interface ... 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-1 This chapter consists of a normal switch port, such as spanning tree, Cisco Discovery Protocol (CDP), and VLAN membership. CH A P T E R 3 Configuring the Switch IP Address and ...
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...configuration files are only broadcast out the sc0 interface. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-2 78-15486-01 The switch IP routing table is used to forward traffic originating on the switch only, not for example, a Telnet session that are... . Understanding How Automatic IP Configuration Works Chapter 3 Configuring the Switch IP Address and Default Gateway When you configure the IP address, subnet mask, and broadcast address (and when you configure VLAN membership on the sc0 interface) of the sc0 or me1 interface...
...configuration files are only broadcast out the sc0 interface. Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-2 78-15486-01 The switch IP routing table is used to forward traffic originating on the switch only, not for example, a Telnet session that are... . Understanding How Automatic IP Configuration Works Chapter 3 Configuring the Switch IP Address and Default Gateway When you configure the IP address, subnet mask, and broadcast address (and when you configure VLAN membership on the sc0 interface) of the sc0 or me1 interface...
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... no reply is received, the switch retains the current IP address. The switch broadcasts ten RARP requests after 10 minutes, the sc0 interface IP address remains set to 0.0.0.0 (provided that DHCP requests fail as well). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-4...Configure this interface when assigning an IP address, subnet mask, and VLAN to the in the BOOTP response. Preparing to Configure the IP Address and Default Gateway Before you reset or power cycle a switch with a DHCP- If no reply is received, the sc0 ...
... no reply is received, the switch retains the current IP address. The switch broadcasts ten RARP requests after 10 minutes, the sc0 interface IP address remains set to 0.0.0.0 (provided that DHCP requests fail as well). Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-4...Configure this interface when assigning an IP address, subnet mask, and VLAN to the in the BOOTP response. Preparing to Configure the IP Address and Default Gateway Before you reset or power cycle a switch with a DHCP- If no reply is received, the sc0 ...
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... to 0.0.0.0 • Assigned to VLAN 1 • IP address, subnet mask, and broadcast address set to 0.0.0.0 • Set to 0.0.0.0 with the network to which the IP address belongs). If necessary, bring the interface up Verify the interface configuration. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-5 To...
... to 0.0.0.0 • Assigned to VLAN 1 • IP address, subnet mask, and broadcast address set to 0.0.0.0 • Set to 0.0.0.0 with the network to which the IP address belongs). If necessary, bring the interface up Verify the interface configuration. Console> (enable) 78-15486-01 Catalyst 4500 Series, Catalyst 2948G, Catalyst 2980G Switches Software Configuration Guide-Release 8.1 3-5 To...
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... (enable) set interface sc0 5 172.20.52.124/255.255.255.248 Interface sc0 vlan set, IP address and netmask set. The me1 interface is present only on the Catalyst 4500 series, Catalyst 2948G, and Catalyst 2980G switches. set interface me1 up . Console> (enable) show interface sl0: flags=51 slip 0.0.0.0... dest 0.0.0.0 sc0: flags=63 vlan 5 inet 172.20.52.124 netmask 255.255.255.248 broadcast...
... (enable) set interface sc0 5 172.20.52.124/255.255.255.248 Interface sc0 vlan set, IP address and netmask set. The me1 interface is present only on the Catalyst 4500 series, Catalyst 2948G, and Catalyst 2980G switches. set interface me1 up . Console> (enable) show interface sl0: flags=51 slip 0.0.0.0... dest 0.0.0.0 sc0: flags=63 vlan 5 inet 172.20.52.124 netmask 255.255.255.248 broadcast...
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...port connection. Enable SLIP for the SLIP connection. Console> (enable) show interface sl0: flags=50 slip 0.0.0.0 dest 0.0.0.0 sc0: flags=63 vlan 5 inet 172.20.52.38 netmask 255.255.255.240 broadcast 172.20.52.47 me1: flags=63 inet 10.1.1.100 netmask 255.255...sc0 default default 0xff000000 UH 0 sl0 Console> (enable) This example shows how to configure two default gateways on a Catalyst 4500 series, Catalyst 2948G, or Catalyst 2980G switch, with Telnet. Use Telnet to access the switch, enter privileged mode, and enter the slip detach command to -point SLIP connections between the...
...port connection. Enable SLIP for the SLIP connection. Console> (enable) show interface sl0: flags=50 slip 0.0.0.0 dest 0.0.0.0 sc0: flags=63 vlan 5 inet 172.20.52.38 netmask 255.255.255.240 broadcast 172.20.52.47 me1: flags=63 inet 10.1.1.100 netmask 255.255...sc0 default default 0xff000000 UH 0 sl0 Console> (enable) This example shows how to configure two default gateways on a Catalyst 4500 series, Catalyst 2948G, or Catalyst 2980G switch, with Telnet. Use Telnet to access the switch, enter privileged mode, and enter the slip detach command to -point SLIP connections between the...