Buy or Renew
Buy or Renew
Cisco + Splunk: It’s a new day for your data. Learn more.
 
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 
cancel
Start a conversation
9061
Views
15
Helpful
7
Replies

vPC port interfaces in HtStby

CiscoPurpleBelt
Level 6
Level 6

‎09-13-2018 08:01 AM

So I have 2 3k access switches in a vPC domain and 2 9k Cores in a vPC domain.

All uplinks between all switches are in vPC channel-group 10

On one 3k switch, all uplinks are int htStdbyIn. The other 3k in that pair is all normal up/up.

On both 9k cores, I have 1 port connecting to each 3k in a suspended state and I can't get up.

Any ideas?

 

0 Helpful
7 Replies 7

ADP_89
Level 1
Level 1

‎09-13-2018 08:22 AM

Hello,

 

That could be cause by many reasons, could you share some more output so we can bettere check what's going on?

 

On each switch collect the following:

 

- show port-channel summary interface port-channel 10

- show run int po10

- show lacp interface ethernet $EthernetPort$

- show int $EthernetPort$  | head lines 5

- show run int $EthernetPort$  

 

Thanks,

Alessandro

CiscoPurpleBelt
Level 6
Level 6
In response to ADP_89

‎09-13-2018 09:01 AM

I will check later.
So putting all links between both vPC domain pair switches in same port-channel 10 (vPC 10) the correct way to do it?
0 Helpful

ADP_89
Level 1
Level 1
In response to CiscoPurpleBelt

‎09-13-2018 09:24 AM

Yes that will work, just make sure that you are using a different vpc domain on the couples. 

 

Here some links:

https://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf  (look for Double sided VPC)

 

https://community.cisco.com/t5/network-architecture-documents/single-sided-vs-double-sided-vpc/ta-p/3130169

 

If you still experience problems share those outputs.

 

Thanks,

ADP

CiscoPurpleBelt
Level 6
Level 6
In response to ADP_89

‎09-13-2018 10:52 AM

Ok I will read up and get back to you.
0 Helpful

CiscoPurpleBelt
Level 6
Level 6
In response to ADP_89

‎09-18-2018 10:17 AM

Sorry given it was not working I had to change it back to a non-vpc port channel.

 

So basically, all config regarding port-channels/links between the VPC pairs were all the same except no "vpc 1" command under interface port-channel 1 (not 10 as that was typo".

Here is the output from the commands you mentioned:

 

 

 

On the Core Switch:


interface port-channel1
description Po1_AccSw1
switchport
switchport mode trunk
switchport trunk native vlan 9
mtu 9216

 

sh port-channel summary interface port-channel 1
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
b - BFD Session Wait
S - Switched R - Routed
U - Up (port-channel)
p - Up in delay-lacp mode (member)
M - Not in use. Min-links not met
--------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth1/35(P) Eth2/33(P)


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

sh lacp interface ethe1/35
Interface Ethernet1/35 is up
Channel group is 1 port channel is Po1
PDUs sent: 29502
PDUs rcvd: 29513
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0
Lag Id: [ [(8000, 0-de-fb-f3-9d-47, 8000, 8000, 1d1), (8000, 4c-77-6d-b1-2d-7f,
8000, 8000, 189)] ]
Operational as aggregated link since Tue Sep 18 16:42:46 2018

Local Port: Eth1/35 MAC Address= 4c-77-6d-b1-2d-7f
System Identifier=0x8000, Port Identifier=0x8000,0x189
Operational key=32768
LACP_Activity=passive
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner information refresh timeout=Long Timeout (90s)
Actor Admin State=60
Actor Oper State=60
Neighbor: 0x1d1
MAC Address= 0-de-fb-f3-9d-47
System Identifier=0x8000, Port Identifier=0x8000,0x1d1
Operational key=32768
LACP_Activity=active
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner Admin State=61
Partner Oper State=61
Aggregate or Individual(True=1)= 1
BB1_vPC1_CrSwA_9504_A2B_RU26-32# sh lacp interface ethe2/33
Interface Ethernet2/33 is up
Channel group is 1 port channel is Po1
PDUs sent: 22859
PDUs rcvd: 22871
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0
Lag Id: [ [(8000, 0-de-fb-f3-9d-47, 8000, 8000, 1d5), (8000, 4c-77-6d-b1-2d-7f,
8000, 8000, 281)] ]
Operational as aggregated link since Tue Sep 18 16:42:45 2018

Local Port: Eth2/33 MAC Address= 4c-77-6d-b1-2d-7f
System Identifier=0x8000, Port Identifier=0x8000,0x281
Operational key=32768
LACP_Activity=passive
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner information refresh timeout=Long Timeout (90s)
Actor Admin State=60
Actor Oper State=60
Neighbor: 0x1d5
MAC Address= 0-de-fb-f3-9d-47
System Identifier=0x8000, Port Identifier=0x8000,0x1d5
Operational key=32768
LACP_Activity=active
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner Admin State=61
Partner Oper State=61
Aggregate or Individual(True=1)= 1

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


interface port-channel1
interface Ethernet1/35
description Po1_AccSw1
switchport
switchport mode trunk
switchport trunk native vlan 9
mtu 9216
channel-group 1 mode passive
no shutdown

sh running-config interface et2/33

!Command: show running-config interface Ethernet2/33


version 7.0(3)I7(2)

interface Ethernet2/33
description Po1_AccSw1
switchport
switchport mode trunk
switchport trunk native vlan 9
mtu 9216
channel-group 1 mode passive
no shutdown


==========================================================
On Access Switch side:

interface port-channel1
description Po1_CrSw
switchport
switchport mode trunk
switchport trunk native vlan 9
mtu 9216


sh por
port-channel port-profile


sh port-channel summary interface port-channel 1
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
b - BFD Session Wait
S - Switched R - Routed
U - Up (port-channel)
p - Up in delay-lacp mode (member)
M - Not in use. Min-links not met
--------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
--------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth1/53(P) Eth1/54(P)

 

 

sh lacp int
interface internal


sh lacp interface ethernet 1/53
Interface Ethernet1/53 is up
Channel group is 1 port channel is Po1
PDUs sent: 31288
PDUs rcvd: 31554
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0
Lag Id: [ [(8000, 0-de-fb-f3-9d-47, 8000, 8000, 1d1), (8000, 4c-77-6d-b1-2d-7f,
8000, 8000, 189)] ]
Operational as aggregated link since Tue Sep 18 16:42:45 2018

Local Port: Eth1/53 MAC Address= 0-de-fb-f3-9d-47
System Identifier=0x8000, Port Identifier=0x8000,0x1d1
Operational key=32768
LACP_Activity=active
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner information refresh timeout=Long Timeout (90s)
Actor Admin State=61
Actor Oper State=61
Neighbor: 0x189
MAC Address= 4c-77-6d-b1-2d-7f
System Identifier=0x8000, Port Identifier=0x8000,0x189
Operational key=32768
LACP_Activity=passive
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner Admin State=60
Partner Oper State=60
Aggregate or Individual(True=1)= 1
BB1_vPC2_AccSw1A_93180_A2C_RU38# sh lacp interface ethernet 1/54
Interface Ethernet1/54 is up
Channel group is 1 port channel is Po1
PDUs sent: 22873
PDUs rcvd: 22855
Markers sent: 0
Markers rcvd: 0
Marker response sent: 0
Marker response rcvd: 0
Unknown packets rcvd: 0
Illegal packets rcvd: 0
Lag Id: [ [(8000, 0-de-fb-f3-9d-47, 8000, 8000, 1d5), (8000, 4c-77-6d-b1-2d-7f,
8000, 8000, 281)] ]
Operational as aggregated link since Tue Sep 18 16:42:45 2018

Local Port: Eth1/54 MAC Address= 0-de-fb-f3-9d-47
System Identifier=0x8000, Port Identifier=0x8000,0x1d5
Operational key=32768
LACP_Activity=active
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner information refresh timeout=Long Timeout (90s)
Actor Admin State=61
Actor Oper State=61
Neighbor: 0x281
MAC Address= 4c-77-6d-b1-2d-7f
System Identifier=0x8000, Port Identifier=0x8000,0x281
Operational key=32768
LACP_Activity=passive
LACP_Timeout=Long Timeout (30s)
Synchronization=IN_SYNC
Collecting=true
Distributing=true
Partner Admin State=60
Partner Oper State=60
Aggregate or Individual(True=1)= 1

 

 

show running-config interface Ethernet1/53-54
!Time: Tue Sep 18 17:03:08 2018

version 7.0(3)I7(2)

interface Ethernet1/53
description Po1_CrSw
switchport
switchport mode trunk
switchport trunk native vlan 9
spanning-tree port type network
mtu 9216
channel-group 1 mode active
no shutdown

interface Ethernet1/54
description Po1_CrSw
switchport
switchport mode trunk
switchport trunk native vlan 9
mtu 9216
channel-group 1 mode active
no shutdown

0 Helpful

ADP_89
Level 1
Level 1
In response to CiscoPurpleBelt

‎09-18-2018 01:50 PM

 Hello,

 

Sorry but if you removed the vpc from the port-channel those commands are not helping anymore. The reason is that VPC will help the 2 peers negotiate some values in order to fool the other side device to believe that there is only one device. Reading the values with VPC enabled will give us the full picture.

 

ADP

 

CiscoPurpleBelt
Level 6
Level 6
In response to ADP_89

‎09-19-2018 07:26 AM

Ok, I will try and configure it in a test environment and see what happens.
0 Helpful
Customers Also Viewed These Support Documents