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Nexus vPC

(Virtual Port Channel)

Vivek Ruhil

CCIE SP #40530

Advance Services

Pradeep Malik

CCIE R&S, SP #530

Advance Services

Vina! "uar

CCIE R&S #35$0

%S

Cisc' Supp'r( C'uni(! Presen(sTech-Talk Series

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vPC Definition

Virtual Port Ch

L2

SiSi SiSi

Non-vPC

Physical Topoloy Loical Topoloy

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!enefits of vPC

vPCDomain

STPDomain

STP Failure

SW1 SW2

SW3

SW4

SW

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vPC Ter"inoloy

vPCmember

port

vPC

vPCmember

port

vPC peer-link

vPC peer

vPC Domain

vPC

vPCmember

port

vPC Peer-keepalivelink

CFS protocol

OrphanPorts

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vPC #peration

2

3

MAC_C

MAC A

1

5

5

N5K-2

C)S

6

4

MAC_A

3

N5K-1N5K-1

N7K-1 N7K-1N7K-2

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vPC Consistency Check

Type $

Type 2

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vPC Confiuration

Folloin! steps are nee"e" to b#il" avPC $Or"er does Matter%&

* De'ne "omains

* (stablish Peer )eepaliveconnectivit*

* Create a Peer link

* +e#se port-channels an" CreatevPCs

* Make Sure Confgurations areConsistent

5 6

1 2

vPC member

+o#te" ,nterace

.ost Port

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vPC Confiuration % Cont&'N7K1!"# $%on&' ()*eature v+%N7K1!"# $%on&' ()v+% domain 1,N7K1!"# $%on&'v+%domain() +eer-ee+alive destination N7K2.PN7K1!"# $%on&'v+%domain()s/stem+riorit/ 2,,,N7K1!"# $%on&'v+%domain()role +riorit/ 1,,,

0N7K1!"# $%on&'() inter*a%e +ort%annel 1,N7K1!"# $%on&'i*() v+% +eerlin-0N7K1!"# $%on&'() inter*a%e eternet22N7K1!"# $%on&'i*() %annel'rou+2,N7K1!"# $%on&'() inter*a%e +ort%annel 2,N7K1!"# $%on&'i*() v+% 2,

N7K2!"# $%on&' ()*eatureN7K2!"# $%on&' ()v+% domN7K2!"# $%on&'v+%domadestination N7K1.PN7K2!"# $%on&'v+%doma

2,,,N7K2!"# $%on&'v+%doma0N7K2!"# $%on&'() inter*a%N7K2!"# $%on&'i*() v+% +0N7K2!"# $%on&'() inter*aN7K2!"# $%on&'i*() %anN7K2!"# $%on&'() inter*a%N7K2!"# $%on&'i*() v+% 2

S!"# $%on&'() inter*a%eeternet22S!"# $%on&'i*() %annel'rou+2,0S!"# $%on&'() inter*a%eeternet12

S!"# $%on&'i*() %annel'rou+2,

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vPC VerificationN7K!"#$%on&'() so v+% rie*

!e'end $( lo%al v+% is don *orardin' viavPC +eerlin-

vPC domain id 1,Peer status +eer ad9a%en%/*ormed o-vPC -ee+alive status +eer is aliveCon&'uration %onsisten%/ status su%%essvPC role +rimar/Numer o* vPC %on&'ured 1

vPC Peerlin- status

id Port Status "%tive vlans 1 Po1, u+ 11135::

vPC statusid Port Status Consisten%/ ;eason"%tive vlans

N7K!"#$%on&'() so v+% +eer-ee+alivevPC -ee+alive status +eer is alivePeer is alive *or $31,( se%onds$2:( mse%

Send status Su%%ess!ast send at 2,13

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vPC ailure Scenarios

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vPC Desin eco""en&ation ;e%ommendation *or vPCPeer !in-

1/ 0he vPC Peer ink sho#l" be orme"o a minim#m o 2 1( links on

separate linecar"s

2/ 0he 1( ports sho#l" becon'!#re" to operate in "e"icate"ban"i"th mo"e

3/ Con'!#re vPC Peer ink ports asS0P etork ports to enableSpannin! 0ree 7ri"!e 8ss#rance onthese links $ass#min! 78 is enable"!loball*&/

4/ (nable 9DD on vPC Peer inks

5/ +#nnin! a "e"icate" :8 ; S:,across the peer link to cater or#plink ail#re $e/!/ to the core& ma*also be "esirable/

;e%ommendation *orvPC Peer Kee+alive !in-

1/ De"icate" ink $1bps iss#

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