User guide

15
Cisco Catalyst 2960S and 3750
Youneedtocongurethefollowing
settings:
• AssignswitchIPaddressanddefault
gateway
• AssignVLAN1withanIPaddress
• EnableIGMPsnooping
• EnableIGMPquerier
• EnableJumbopacketsandchoosethe
Max setting.
• SetportfastforSTP
Assign switch IP address and default
gateway
BeginninginprivilegedEXECmode,
follow these steps to manually assign IP
information to multiple switched virtual
interfaces(SVIs).
1congureterminal
2 interface vlan 1
3 ip address <ip-address subnet-mask>
4 exit
5 ip default-gateway <ip-address>
6end
7showinterfacesvlan1
8 show ip redirects
9copyrunning-congstartupcong
Assign VLAN1 with an IP address
1congureterminal
2 vlan 1
3 end
4copyrunning-congstartupcong
Enabling IGMP snooping
BeginninginprivilegedEXECmodefollow
these steps to globally enable IGMP
Snoopingontheswitch,rstgloballyand
then on VLAN1.
Globally:
1congureterminal
2 ip igmp snooping
3 end
4copyrunning-congstartup-cong
On VLAN1:
1congureterminal
2 ip igmp snooping vlan 1
3 end
4copyrunning-congstartup-cong
Enable IGMP querier
EnableIGMPQuerierusingthefollowing
commands in CLI mode
1congureterminal
2 ip igmp snooping querier
3 end
4 show ip igmp snooping vlan 1
5copyrunning-congstartup-cong
Enable jumbo frames
EnableJumboframesandsetthesizeto
themaximum(9000bytes).
1congureterminal
2systemmtujumbo9000
4 end
5copyrunning-congstartup-cong
6reload
Enable STP porast
1congureterminal
2 interface <interface-id>
3 spanning-tree portfast
4 end
5 show spanning-tree interface <interface-
id> portfast
6copyrunning-congstartup-cong
Cisco 6500
ForCisco6500switches,portfast must
be enabled for the initial device discovery
process.
1Switch<cong-if>#
2Switch<cong-if>#spanning-treeportfast
Enable ip igmp snooping fast-leave
To enable IGMPv3-snooping fast-leave
processing, use the ip igmp snooping fast-
leavecommandininterfaceconguration
mode. To disable fast-leave processing, use
the no form of this command:
• ipigmpsnoopingfast-leave
• noipigmpsnoopingfast-leave
Syntax Descripon
This command has no arguments or
keywords.
Defaults
The defaults are as follows:
• IGMPversion2-Disabled
• IGMPversion3-Enabled
Command Modes
Interfaceconguration
Command History
ReleaseModication
• 12.2(17d)SXB-Supportforthis
commandontheSupervisorEngine2was
extendedtoRelease12.2(17d)SXB.
• 12.2(33)SRA-Thiscommandwas
integratedintoCiscoIOSRelease
12.2(33)SRA.
Usage Guidelines
This command is not supported on Cisco
7600seriesroutersthatarecongured
withaSupervisorEngine720.
EnterthiscommandinVLANinterface
congurationmodeonly.
Switch setups
Switch setups