Cisco WS-X6416-GE-MT - Interface Module - Expansion Manual de usuario descargar pdf (Pagina 28)

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In the Cisco Catalyst OS, the channel protocol is configured on a per-module basis. That is, all

channel ports on a module must use the same negotiation protocol. In Cisco IOS Software, the

channel protocol can be configured on a per-port basis.

EtherChannel Load Sharing

Several load-balancing algorithms are available for distributing traffic across the ports in an

EtherChannel group. This is regardless of the whether an EtherChannel group contains Layer 2 or

Layer 3 ports and interfaces. The options are the same in both the Cisco Catalyst OS and Cisco

IOS Software and are shown below.

Cisco Catalyst OS Cisco IOS Software

set port channel all distribution ?

ip Channel distribution ip

mac Channel distribution mac

session Channel distribution session

set port channel all distribution ip ?

source Channel distribution source

destination Channel distribution dest

both Channel distribution both

port-channel load-balance ?

dst-ip Dst IP Addr

dst-mac Dst Mac Addr

dst-port Dst TCP/UDP Port

src-dst-ip Src XOR Dst IP Addr

src-dst-mac Src XOR Dst Mac Addr

src-dst-port Src-Dst TCP/UDP Port

src-ip Src IP Addr

src-mac Src Mac Addr

src-port Src TCP/UDP Port

EtherChannel Types

Cisco IOS Software can handle both Layer 2 and Layer 3 EtherChannel groups. In the context of

Cisco IOS Software, a Layer 2 EtherChannel group includes ports that are configured as switch

ports; a Layer 3 EtherChannel group can include only switchports in combination with SVIs, or it

could include only routed interfaces. The Cisco Catalyst OS has only one type of Layer 3

EtherChannel group because it does not support true routed ports, only SVIs.

Layer 2 EtherChannel Groups

All interfaces are grouped together in a common channel group, and the subsequent interface

port-channel is configured as a switchport. The channel protocol (PAgP or LACP) automatically

creates the Port-Channel 1 interface when the channel-group command is enabled on the

physical interface.

Cisco Catalyst OS Cisco IOS Software

set port channel 3/1—8 1 desirable

set trunk 3/1—8 dot1q

interface range fa3/1—8

no shut

channel-group 1 mode desirable

interface port-channel 1

switchport

switchport trunk encap dot1q

no shut

Note: Defaults to PAgP for negotiation

Layer 3 EtherChannel Groups with SVIs

Layer 3 EtherChannel groups with SVIs are formed like the Layer 2 EtherChannel groups with

the addition of a Layer 3 SVI for routing functionality. This is the method for configuring Layer 3

EtherChannel groups with Layer 2 VLANs providing the transport and SVIs providing the VLAN

termination and routing.

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