Appendix A: Commands Used in This Book

This appendix provides all the different commands used in this book and their meanings. Use this as a study aid and as a desk reference.

The following list includes the commands used in this book for the IOS-based switches.

Command	Meaning	Chapter
auto qos voip	Enables auto-qos on an interface	Chapter 9
class-map	Matches traffic to a class	Chapter 9
custom-queue-list list_ number	Assigns the custom queue to an interface	Chapter 9
Ctrl+Shift+6, then X	Used as an escape sequence	Chapter 2
duplex	Sets the duplex of an interface, with half- or full- duplex	Chapter 2
enable secret password	Sets the encrypted enable password of the switch	Chapter 2
hostname	Assigns a name to the Catalyst switch	Chapter 2
interface	Used to select an interface	Chapter 3
interface ethernet module/port	Used to identify or set parameters on an interface on the switch	Chapter 2
interface fastethernet module/ port	Displays or changes parameters on the FastEthernet interfaces	Chapter 2
ip address	Assigns an IP address to the switch	Chapter 2
ip cef	Enables Cisco Express Forwarding	Chapter 7
mls qos trust	Ensures that the CoS of the incoming frame is trusted	Chapter 9
no debug all(undebug all)	Disables all debugging	Chapter 10
no spantree	Turns off spanning tree for a VLAN	Chapter 4
policy-map	Sets the policy for matched traffic	Chapter 9
port-channel mode	Enables an EtherChannel bundle	Chapter 5
priority-group list_number	Assigns the priority list to an interface	Chapter 9
priority-list list_number	Creates the priority queue parameters	Chapter 9
queue-list list_number	Creates the custom queue parameters	Chapter 9
service-policy	Applies the policy to an interface	Chapter 9
show buffers	Displays the systems buffers	Chapter 10
show flash	Displays the contents of flash memory	Chapter 10
show ip cef	Displays the CEF interface conditions	Chapter 7
show mac-address-table	Displays the contents of the CAM	Chapter 10
show processes	Displays information about current system processes	Chapter 10
show run	Displays the running-config of the switch	Chapter 2
show spanning-tree	Used to view spanning tree information on a VLAN	Chapters 4 and 5
show spanning-tree uplink- fast	Shows the UplinkFast parameters	Chapter 5
show tcam	Displays data about the Tertiary CAM activity	Chapter 10
show version	Displays the operating system version	Chapter 10
show vtp counters	Shows the switches' VTP configuration	Chapter 3
shutdown	Disables a particular interface	Chapter 2
spanning-tree	Turns on spanning tree for a VLAN	Chapter 4
spanning-tree cost	Configures a cost for an interface	Chapter 5
spanning-tree priority	Configures the priority for an interface	Chapter 5
spanning-tree start- forwarding	Enables PortFast on an interface	Chapter 5
standby ip	Creates the HSRP address and enables HRP on an interface	Chapter 9
standby preempt	Enables active preempting on an interface	Chapter 9
standby track	Enables interface tracking related to an HSRP interface	Chapter 9
switchport	Sets the characteristics of the interface, including VLAN membership and trunk configurations	Chapter 3
vlan	Sets VLAN information	Chapter 3
vlan database	Enters VLAN configuration mode	Chapter 3
vtp	Changes the VTP mode to server, transparent, or client; sets the domain name and password	Chapter 3
wrr-queue bandwidth	Sets queue thresholds in weighted round robin queuing	Chapter 9
wrr-queue cos-map	Establishes the class of service queues	Chapter 9

The following list includes commands used for configuring the 4000 series switch in this book.

Command	Meaning	Chapter
clear mls entry destination ip_ addr_spec source ip_addr_ spec flow protocol src_port dst_port [all]	Allows all MLS entries to be cleared in addition to allowing specific entries to be terminated	Chapter 7
clear trunk	Clears VLANs from a trunked port	Chapter 3
Ctrl+C	Used as a break sequence	Chapter 2
Ctrl+Shift+6, then X	Used as an escape sequence	Chapter 2
show spantree uplinkfast	Shows the UplinkFast parameters and statistics	Chapter 5
interface vlan #	Enables interface configuration mode for the specified VLAN interface	Chapter 6
ip cgmp proxy	Enables CGMP on the specified interface on routers	Chapter 8
ip igmp join-group group_ address	Makes the router become an active member of the specified multicast group	Chapter 8
ip igmp version (2|1)	Applied to the interface and used to change the version of IGMP used on that interface	Chapter 8
ip multicast ttl- threshold ttl	Applied to all border interfaces to enforce the scope or boundary of the IP multicast network	Chapter 8
ip multicast-routing	Enables IP multicast forwarding on the router	Chapter 8
ip pim dense-mode	Enables PIM dense mode operation on the interface	Chapter 8
ip pim rp-address ip_address group_access_list_ number [override]	Manually configures an RP address on a multicast router	Chapter 8
ip pim send-rp- announce type number\ scope ttl group_list access_list_number	Assigns specific multicast group addresses to an RP. The RP can then only announce that it knows multicast groups permitted by the access list specified	Chapter 8
ip pim send-rp- discovery scope ttl	Configures RP Mapping Agent and allows the router to discover all RPs and group assignments	Chapter 8
ip pim sparse-dense- mode	Enables PIM sparse-dense mode operation on the interface	Chapter 8
ip pim sparse-mode	Enables PIM sparse mode operation on the interface	Chapter 8
mac-address	Sets a specific MAC address on an interface	Chapter 6
mls rp ip	Enables MLS on an external router, both global and interface specific	Chapter 7
mls rp management- interface	Assigns the interface to the MLS-RP. This allows MLSP updates to use this interface	Chapter 7
mls rp vlan-id vlan_id_ number	Assigns the interface the proper VLAN number	Chapter 7
mls rp vtp-domain domain_ name	Assigns the interface to the VTP domain	Chapter 7
mtrace	Displays the forwarding path based on group membership or the RPF	Chapter 8
ping	Used for testing reachability	Chapter 8
session	Connects the CLI to a session on a route processor module	Chapter 6
set cgmp enable	Used on Catalyst switches to enable CGMP	Chapter 8
set enablepass	Configures the enable password on a set-based device	Chapter 2
set interface sco	Assigns an IP address to the management interface of the set-based switch	Chapter 2
set ip route	Configures a default route on a set-based switch	Chapter 6
set mls agingtime agingtime	Sets the MLS aging time value to the specified value	Chapter 7
set mls agingtime fast fastagingtime pkt_threshold	Allows the fast aging time and packet threshold to be set	Chapter 7
set mls enable	Enables MLS on Catalyst switches. For most switches, this is set to on by default.	Chapter 7
set password	Configures the usermode password on a set- based device	Chapter 2
set port channel	Creates an EtherChannel bundle	Chapter 5
set port duplex	Sets the duplex of a port	Chapter 2
set port speed	Sets the speed of a port	Chapter 2
set qos map	Sets the class of service mappings on a port	Chapter 9
set spantree	Turns spanning tree off or on for a VLAN	Chapter 4
set spantree backbonefast	Enables BackboneFast for a switch	Chapter 5
set spantree fwddelay	Changes the forward delay time on a switch	Chapter 5
set spantree hello	Changes the BPDU hello time on a switch	Chapter 5
set spantree maxage	Sets how long a BPDU that is received will stay valid until another BPDU is received	Chapter 5
set spantree portcost	Sets the STP port cost	Chapter 5
set spantree portfast	Enables PortFast on a port	Chapter 5
set spantree portpri	Sets the STP port priority	Chapter 5
set spantree portvlanpri	Configures links to forward only certain VLANs	Chapter 5
set spantree root	Makes a set-based switch a root bridge	Chapter 5
set spantree uplinkfast	Enables UplinkFast on a port	Chapter 5
set system name	Assigns a name to the Catalyst switch	Chapter 2
set trunk	Configures trunking on a port	Chapter 3
set vlan	Creates a VLAN and also assigns a port to a VLAN	Chapter 3
set vtp domain	Sets the VTP domain name	Chapter 3
set vtp mode	Sets the VTP mode of the switch	Chapter 3
set vtp passwd	Sets the optional VTP password	Chapter 3
show config	Shows the configuration of the 5000 series switch	Chapters 2 and 6
show mls	Shows MLS information on a switch	Chapter 7
show mls entry	Provides MLS entry data on the MLS-SE	Chapter 7
show mls rp	Provides global MLS information	Chapter 7
show mls rp interface interface	Provides interface-specific MLS information	Chapter 7
show mls rp vtp- domain domain_name	Provides MLS information for the VTP domain	Chapter 7
show module	Shows the module and numbers of cards in the switch	Chapter 6
show port capabilities slot/ port	Shows the configuration of individual ports	Chapter 5
show port channel	Shows the status of an EtherChannel bundle	Chapter 5
show spantree	Shows the state of the STP per VLAN	Chapters 4 and 5
show vlan	Shows the configured VLANs	Chapter 3
show vtp domain	Shows the VTP domain configurations	Chapter 3
show vtp domain	Provides VTP domain information on the switch	Chapter 7