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Wysłany: Sob 20:34, 05 Mar 2011 Temat postu: tod 7319 |
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Cisco CCNA and CCNP Qualification: Just how And also Exactly why To create A great Etherchannel
CCNA and also CCNP individuals are usually well-versed inside Spanning-Tree Method, and also one of many advantages of STP will be which it is useful together with minimum further setting. There is certainly a single circumstance in which STP operates in opposition to us all just a little whilst it stops moving over loops, which is the specific situation in which a couple of buttons have got numerous actual contacts. You'll believe when you have a couple of independent actual contacts among a couple of buttons, doubly significantly info could possibly be dispatched from swap for the apart from when there was clearly only 1 relationship. STP won't enable this kind of automagically, nonetheless so that you can stop moving over loops coming from building, one of many routes will probably be clogged. SW1 and also SW2 are usually related by means of a couple of independent actual contacts, about locations fast0/11 and also quickly 0/12. Even as is able to see the following about SW1, simply slot 0/11 is in fact forwarding targeted traffic. STP provides set one other slot directly into preventing function (BLK). SW1#show occupying vlan 10(some end result taken out regarding clarity)Interface Function Sts Expense Prio. Nbr TypeFa0/11 Main FWD 20 128. 11 P2pFa0/12 Altn BLK 20 128. 12 P2pWhile STP will be supporting us all simply by avoiding moving over loops, STP can be damaging us all simply by avoiding us all coming from employing a flawlessly appropriate way among SW1 and also SW2. We're able to virtually twice the particular bandwidth accessible involving the a couple of buttons when we're able to utilize in which way which is increasingly being clogged. The trick to be able to while using the at present clogged way will be establishing a great Etherchannel. A great Etherchannel is just any plausible bundling regarding a couple of : 8 actual contacts among a couple of Cisco buttons. Establishing a great Etherchannel is in fact very easy. Utilize the control "channel-group 1 function on" about each slot you would like to become put in to the Etherchannel. Needless to say,[link widoczny dla zalogowanych], this kind of has to be completed about equally buttons in the event you configure a great Etherchannel using one swap , nor do this around the appropriate locations around the some other swap, the particular series method should go straight down and also keep right now there. The sweetness of your Etherchannel will be in which STP recognizes the particular Etherchannel together relationship. When some of the actual contacts in the Etherchannel decrease, STP will not notice this kind of, and also STP is not going to recalculate. Although targeted traffic movement involving the a couple of buttons can clearly become slowed up,[link widoczny dla zalogowanych], the particular postpone inside transmitting due to a great STP recalculation will be averted. A great Etherchannel furthermore we can utilize numerous actual contacts at once. This is the way to set these kinds of locations directly into a great Etherchannel: SW1#conf tEnter setting directions, a single every series. Conclusion together with CNTL/Z. SW1(config)#interface quickly 0/11SW1(config-if)#channel-group 1 function onCreating any port-channel software Port-channel 1SW1(config-if)#interface quickly 0/12SW1(config-if)#channel-group 1 function onSW2#conf tEnter setting directions, a single every series. Conclusion together with CNTL/Z. SW2(config)#int quickly 0/11SW2(config-if)#channel-group 1 function onSW2(config-if)#int quickly 0/12SW2(config-if)#channel-group 1 function onThe control "show software trunk" and also "show spanning-tree vlan 10" will probably be utilized to validate the particular Etherchannel setting. SW2#show software shoe (some end result taken out regarding clarity)Port Function Encapsulation Position Local vlanPo1 attractive 802. 1q trunking 1SW2#show occupying vlan 10 (some end result taken out regarding clarity)Interface Function Sts Expense Prio. Nbr Sort Po1 Desg FWD 12 128. 65 P2pBefore establishing the particular Etherchannel, we all observed personal locations the following. Today we all notice "Po1",[link widoczny dla zalogowanych], which usually represents the particular software "port-channel1". Here is the plausible software developed any time a great Etherchannel is created. We have been today making use of equally actual routes involving the a couple of buttons at once! Which is a single key gain doing his thing why don't we notice one more. Normally, in the event the individual available way among a couple of trunking buttons decreases, there exists a considerable postpone although one more appropriate way will be exposed : near a moment in a few scenarios. We all can [link widoczny dla zalogowanych]ay power down slot 0/11 about SW2 to see the consequence around the etherchannel. SW2#conf tEnter setting directions, a single every series. Conclusion together with CNTL/Z. SW2(config)#int quickly 0/11SW2(config-if)#shutdown3w0d: %LINK-5-CHANGED: Software FastEthernet0/11, altered express to be able to administratively downSW2#show occupying vlan 10VLAN0010Spanning shrub empowered method ieeeInterface Function Sts Expense Prio. Nbr TypePo1 Desg FWD 20 128. 65 P2pSW2#show software trunkPort Function Encapsulation Position Local vlanPo1 attractive 802. 1q trunking 1The Etherchannel failed to decrease! STP recognizes the particular Etherchannel being a individual website link as a result, in terms of STP is worried,[link widoczny dla zalogowanych], practically nothing took place. Constructing a great Etherchannel and also focusing on how it will help the community can be an crucial talent regarding CCNA and also CCNP accomplishment, plus it will come in extremely helpful face to face at the same time. Ensure you are usually more comfortable with constructing a single just before using Cisco's tests!Topics related articles:
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