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Channel Groups

What exactly are the channel groups used for and is there a way to remove them? I'm seeing these groups in my 4006 and am trying to create gigabit etherchannels to connect to 3550 switches.

Admin Group Ports

----------- -----------------------------------------------

131 2/31

134 4/7-10

137 1/1-2

138 2/1-2

139 2/3-6

140 2/7-10

141 2/11-14

142 2/15-18

143 2/19-22

144 2/23-26

145 2/27-30

146 2/32-34

147 3/1-4

148 3/5-8

149 3/9-12

150 3/13-16

151 3/17-20

152 3/21-24

153 4/1-2

154 4/5-6

156 4/11-14

157 4/15-18

159 4/3-4

1 REPLY
Bronze

Re: Channel Groups

channel groups are sets of ports that can form a channel. They default to sets of 4 consecutive ports on every card. If you want a channel on ports 3/1-4 or any part of that (3/1-2,3/2-3...it will work. If you want to form a channel using ports that are not already grouped, like 3/4-5 then you need to create a new group. This is the command on a 6500 running cat OS. I think the 4006 is the same. You do not enter the "335" it is assigned automatically. As you can see I used the command to make a channel span two cards so it would stay up if a card went down. I don't know if the 4000 can do that.

set port channel 4/16,6/16 335

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