Configuring-Link-Aggregation-with-EtherChannel.ppt

Slide Title,Body Text,Second Level,Third Level,Fourth Level,Fifth Level,Cisco Network Academy.All rights reserved.,.,CCNP+BSMSN v3.0,Implementing Spanning Tree,Configuring Link Aggregation with EtherChannel,EtherChannel,Logical aggregation of similar links,Load balances,Viewed as one logical port,Redundancy,Dynamic Trunk Negotiation Protocols,PAgP,Cisco proprietary,LACP,IEEE 802.3ad standard,About EtherChannel Configuration Commands,Configure PAgP,interface port-channel,channel-group-number,channel-protocol pagp,channel-group 1 mode,mode,Verify,show interfaces fastethernet 0/1 etherchannel,show etherchannel 1 port-channel,show etherchannel 1 summary,Configuring Layer 3 EtherChannel,Switch(config)#interface port-channel,port-channel-number,Creates a port-channel interface,Switch(config-if)#no switchport,Switch(config-if)#ip address address mask,Specifies L3 and assigns an IP address and subnet mask to the EtherChannel,Switch(config-if)#no switchport,Switch(config-if)#channel-group,number,mode auto|desirable|on,Configures the interface as L3 and specifies the port channel and the PAgP mode,Switch(config)#interface,interface slot/port,Specifies an interface to configure,Verifying EtherChannel,Switch#show running-config interface port-channel,num,Displays port-channel information,Switch#,show run interface port-channel 1,Building configuration.,Current configuration:66 bytes,!,interface Port-channel1,switchport mode dynamic desirable,end,Switch#show running-config interface,interface x/y,Displays interface information,Switch#,show run interface gig 0/9,Building configuration.,Current configuration:127 bytes,!,interface GigabitEthernet 0/9,switchport mode dynamic desirable,channel-group 2 mode desirable,channel-protocol pagp,end,Verifying EtherChannel(Cont.),Switch#,show interfaces gigabitethernet 0/9 etherchannel,Port state =Up Mstr In-Bndl,Channel group=1 Mode=Desirable-Sl Gcchange=0,Port-channel =Po2 GC =0 x00020001 Pseudo port-channel=Po1,Port index =0 Load=0 x00,Flags:S-Device is sending Slow hello.C-Device is in Consistent state.,A-Device is in Auto mode.P-Device learns on physical port.,d-PAgP is down.,Timers:H-Hello timer is running.Q-Quit timer is running.,S-Switching timer is running.I-Interface timer is running.,Local information:,Hello Partner PAgP Learning Group,Port Flags State Timers Interval Count Priority Method Ifindex,Gi0/9 SC U6/S7 H 30s 1 128 Any 15,Partners information:,Partner Partner Partner Partner Group,Port Name Device ID Port Age Flags Cap.,Gi0/9 DSW122 0005.313e.4780 Gi0/9 18s SC 20001,Age of the port in the current state:00d:20h:00m:49s,Configuring EtherChannel Load Balancing,Switch#,show etherchannel load-balance,Source XOR Destination IP address,Switch(config)#port-channel load-balance,type,Configures EtherChannel load balancing,Summary,EtherChannel,increases bandwidth and provides redundancy by aggregating individual links between switches.,EtherChannel,can be dynamically configured between switches using either,PAgP,or LACP.,Etherchannel,is configured and verified using a variety of,show,commands.,Best practices should be followed for,EtherChannel,configuration.,EtherChannel,load balances traffic over all the links in the bundle.,