Nexus 7010 port-channel to ESXi host running on Dell 910 and 810
Was wondering has anyone had any experience with configuring a port-channel going back to ESXi host. My basic config is below. My issue is with what to put in the spanning-tree port type. Do I use normal, edge, network, or edge trunk?? Yes I have read most of the documentation out there but am just a lil confused. I just wanna be right.
Also if anyone has any suggestions for the Vswitch config as well that would be much appreciated.
int PO 201
desc 01_6-1
switchport mode trunk
switchport access vlan 99
switchport trunk native vlan 777
switchport trunk allowed vlan 220,300,310,320-321,350,390-391
switchport trunk allowed vlan add 420,777
spanning-tree port type normal (what should go here)
speed auto
medium p2p
no shutdown
int e8/11
desc 01_6-1
channel-group 201 force
int e10/11
desc 01_6-1
channel-group 201 force
Thanks Guys
Short answer: You could use spanning tree port type edge (trunk; if it's going to be a trunk). The vswitch isn't really a switch, it doesn't participate in spanning tree, so it's fine to make it an edge port.
In my experience, many VMware guys don't like port channels as much as the other more host-centric NIC teaming methods. I think this has to do with ESX having a less than stellar implementation of etherchannel/LACP early on.
Similar Messages
-
Hi all,
Hi have install a cisco nexus 7010 with the following modules :
Mod Ports Module-Type Model Status
1 48 1000 Mbps Optical Ethernet XL Modul N7K-M148GS-11L ok
2 48 10/100/1000 Mbps Ethernet XL Module N7K-M148GT-11L ok
5 0 Supervisor Module-2 N7K-SUP2 active *
6 0 Supervisor Module-2 N7K-SUP2 ha-standby
9 48 10/100/1000 Mbps Ethernet XL Module N7K-M148GT-11L ok
10 48 1/10 Gbps Ethernet Module N7K-F248XP-25E ok
After trying to build a port-channel with a 1G port on slot 1 and a 1G port on slot 10 i get a messague with incompatible port.
Can any one tell me if its supported a port-channel with ports on the following modules :
N7K-M148GS-11L
N7K-F248XP-25E
Thanks
PatrícioHi Particio,
The port-channel/vPC features require that all uplinks are connected to the same type of
module. You can refer to the following document.
http://www.cisco.com/en/US/partner/docs/switches/datacenter/sw/6_x/nx-os/interfaces/configuration/guide/if_portchannel.html#wp1888267
HTH
Regards
Inayath
*Plz rate if this is helpfull and mark as Answerd if this answerd your query. -
Nexus 7010 port-channel failed, not receiving any LACP BPDUs
Hi every one,
I'm having issue when trying to form LACP etherchannel links between N7k and server. Here's the setup:
SERVER eth0-------N7K-1 Eth102/1/9
SERVER eth1-------N7K-2 Eth102/1/9
Configuration:
N7K-1# sh run int eth102/1/9
interface Ethernet102/1/9
switchport
switchport access vlan 204
channel-group 321
no shutdown
N7K-1# sh run int po321
interface port-channel321
switchport
switchport access vlan 204
flowcontrol send on
vpc 321
N7K-2# sh run int eth102/1/9
interface Ethernet102/1/9
switchport
switchport access vlan 204
channel-group 321
no shutdown
N7K-2# sh run int po321
interface port-channel321
switchport
switchport access vlan 204
flowcontrol send on
vpc 321
vPC status
id Port Status Consistency Reason Active vlans
321 Po321 up success success 204
Scenario 1-Etherchannel only without protocol
Both links are up, problem only happened when link to N7K-2 restart. If link to N7K-1 restart no problem.
Scenario 2-Etherchannel with LACP
Both physical links NOT up. Logs showing this:
2013 Aug 20 17:04:31 N7K-1 %ETHPORT-5-IF_DOWN_ADMIN_DOWN: Interface Ethernet102/1/9 is down (Administratively down)
2013 Aug 20 17:04:32 N7K-1 %ETHPORT-5-IF_ADMIN_UP: Interface Ethernet102/1/9 is admin up .
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-SPEED: Interface Ethernet102/1/9, operational speed changed to 1 Gbps
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-IF_DUPLEX: Interface Ethernet102/1/9, operational duplex mode changed to Full
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet102/1/9, operational Receive Flow Control state changed to off
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet102/1/9, operational Transmit Flow Control state changed to on
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-SPEED: Interface port-channel321, operational speed changed to 1 Gbps
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-IF_DUPLEX: Interface port-channel321, operational duplex mode changed to Full
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface port-channel321, operational Receive Flow Control state changed to off
2013 Aug 20 17:04:35 N7K-1 %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface port-channel321, operational Transmit Flow Control state changed to on
2013 Aug 20 17:04:55 N7K-1 %ETH_PORT_CHANNEL-5-PORT_SUSPENDED: Ethernet102/1/9: Ethernet102/1/9 is suspended
2013 Aug 20 17:05:13 N7K-1 %LACP-FEX102-5-LACP_SUSPEND_INDIVIDUAL: LACP port Ethernet102/1/9(0x1f650200) of port-channel port-channel321(0x16000140) not receiving any LACP BPDUs suspending (individual) port
Scenario 3-Etherchannel with LACP to single 3750 switch
All working fine, fail over success as expected.
N7k is using NX-OS 6.0(4)
Anyone facing this issue?Hi,
I had had this problem before.
Please, put the following command, if in your server side is using LACP:
interface Ethernet102/1/9
switchport
switchport access vlan 204
channel-group 321 mode active
no shutdown
N7K-1# sh run int po321
interface port-channel321
switchport
switchport access vlan 204
flowcontrol send on
vpc 321
N7K-2# sh run int eth102/1/9
interface Ethernet102/1/9
switchport
switchport access vlan 204
channel-group 321 mode active
no shutdown
N7K-2# sh run int po321
interface port-channel321
switchport
switchport access vlan 204
flowcontrol send on
vpc 321 -
Nexus 6K: Port-Channel Load-Balance
Hi all,
I configured "port-channel load-balance ethernet source-dest-mac" on Nexus 6001. But when I use "show run all | in load-balance", it displays module 1 and module 2 are still using source-dest-ip for port-channel load-balance. And for command "show port-channel load-balance" and "show port-channel load-balance forwarding-path interface", it still shows switch using MAC for hash algorithm. The NXOS is 6.0(2)N1(2a).
Does anybody know:
- What is the function of "port-channel load-balance ethernet source-dest-ip module" and in which situation this command will be effective?
- It shows "port-channel load-balance ethernet source-dest-ip module" command for both module 1 and 2. Module 1 is N6K Supervisor and module 2 is 4xQSFP Ethernet Module. Is it possible to set different load-balance algorithm to these 2 modules?
# show run all | in load-balance
port-channel load-balance ethernet source-dest-mac
port-channel load-balance ethernet source-dest-ip module 1
port-channel load-balance ethernet source-dest-ip module 2
# show port-channel load-balance
Port Channel Load-Balancing Configuration:
System: source-dest-mac
Port Channel Load-Balancing Addresses Used Per-Protocol:
Non-IP: source-dest-mac
IP: source-dest-mac
# show port-channel load-balance forwarding-path interface port-channel 30 vlan 150 src-ip 172.25.228.6 dst-ip 172.25.226.97
Missing params will be substituted by 0's.
Load-balance Algorithm on switch: source-dest-mac
crc_hash: 977 Polynomial: CRC10b Outgoing port id Ethernet1/2
Param(s) used to calculate load-balance:
seed: 0x701
dst-mac: 0000.0000.0000
src-mac: 0000.0000.0000
# show module
Mod Ports Module-Type Model Status
1 48 Norcal 64 Supervisor N6K-C6001-64P-SUP active *
2 10 Nexus 4xQSFP Ethernet Module N6K-C6001-M4Q ok
Mod Sw Hw World-Wide-Name(s) (WWN)
1 6.0(2)N2(3) 1.0 --
2 6.0(2)N2(3) 1.0 --Hi all,
I configured "port-channel load-balance ethernet source-dest-mac" on Nexus 6001. But when I use "show run all | in load-balance", it displays module 1 and module 2 are still using source-dest-ip for port-channel load-balance. And for command "show port-channel load-balance" and "show port-channel load-balance forwarding-path interface", it still shows switch using MAC for hash algorithm. The NXOS is 6.0(2)N1(2a).
Does anybody know:
- What is the function of "port-channel load-balance ethernet source-dest-ip module" and in which situation this command will be effective?
- It shows "port-channel load-balance ethernet source-dest-ip module" command for both module 1 and 2. Module 1 is N6K Supervisor and module 2 is 4xQSFP Ethernet Module. Is it possible to set different load-balance algorithm to these 2 modules?
# show run all | in load-balance
port-channel load-balance ethernet source-dest-mac
port-channel load-balance ethernet source-dest-ip module 1
port-channel load-balance ethernet source-dest-ip module 2
# show port-channel load-balance
Port Channel Load-Balancing Configuration:
System: source-dest-mac
Port Channel Load-Balancing Addresses Used Per-Protocol:
Non-IP: source-dest-mac
IP: source-dest-mac
# show port-channel load-balance forwarding-path interface port-channel 30 vlan 150 src-ip 172.25.228.6 dst-ip 172.25.226.97
Missing params will be substituted by 0's.
Load-balance Algorithm on switch: source-dest-mac
crc_hash: 977 Polynomial: CRC10b Outgoing port id Ethernet1/2
Param(s) used to calculate load-balance:
seed: 0x701
dst-mac: 0000.0000.0000
src-mac: 0000.0000.0000
# show module
Mod Ports Module-Type Model Status
1 48 Norcal 64 Supervisor N6K-C6001-64P-SUP active *
2 10 Nexus 4xQSFP Ethernet Module N6K-C6001-M4Q ok
Mod Sw Hw World-Wide-Name(s) (WWN)
1 6.0(2)N2(3) 1.0 --
2 6.0(2)N2(3) 1.0 -- -
Nexus 1000v port-channels questions
Hi,
I’m running vCenter 4.1 and Nexus 1000v and about 30 ESX Hosts.
I’m using one system uplink port profile for all 30 ESX Host; On each of the ESX host I have 2 NICs going to a Catalyst 3750 switch stack (Switch A), and another 2 NICs going to another Catalyst 3750 switch stack (Switch B).
The Nexus is configured with the “sub-group CDP” command on the system uplink port profile like the following:
port-profile type ethernet uplink
vmware port-group
switchport mode trunk
switchport trunk allowed vlan 1,800,802,900,988-991,996-997,999
switchport trunk native vlan 500
mtu 1500
channel-group auto mode on sub-group cdp
no shutdown
system vlan 988-989
description System-Uplink
state enabled
And the port channel on the Catalyst 3750 are configured like the following:
interface Port-channel11
description ESX-10(Virtual Machine)
switchport trunk encapsulation dot1q
switchport trunk native vlan 500
switchport trunk allowed vlan 800,802,900,988-991
switchport mode trunk
switchport nonegotiate
spanning-tree portfast trunk
end
interface GigabitEthernet1/0/18
description ESX-10(Virtual Machine)
switchport trunk encapsulation dot1q
switchport trunk native vlan 500
switchport trunk allowed vlan 800,802,900,988-991
switchport mode trunk
switchport nonegotiate
channel-group 11 mode on
spanning-tree portfast trunk
spanning-tree guard root
end
interface GigabitEthernet1/0/1
description ESX-10(Virtual Machine)
switchport trunk encapsulation dot1q
switchport trunk native vlan 500
switchport trunk allowed vlan 800,802,900,988-991
switchport mode trunk
switchport nonegotiate
channel-group 11 mode on
spanning-tree portfast trunk
spanning-tree guard root
end
Now Cisco is telling me that I should be using MAC pinning when doing a trunk to two different stacks , and that each interface on 3750 should not be configured in a port-channel like above, but should be configured as individual trunks.
First question: Is the above statement correct, are my uplinks configured wrong? Should they be configured individually in trunks instead of a port-channel?
Second questions: If I need to add the MAC pinning configuration on my system uplink port-profile can I create a new system uplink port profile with the MAC pinning configuration and then move one ESX host (with no VM on them) one at a time to that new system uplink port profile? This way, I could migrate one ESX host at a time without outages to my VMs. Or is there an easier way to move 30 ESX hosts to a new system uplink profile with the MAC Pinning configuration.
Thanks.Hello,
From what I understood, you have the following setup:
- Each ESX host has 4 NICS
- 2 of them go to a 3750 stack and the other 2 go to a different 3750 stack
- all 4 vmnics on the ESX host use the same Ethernet port-profile
- this has 'channel-group auto mode on sub-group cdp'
- The 2 interfaces on each 3750 stack are in a port-channel (just 'mode on')
If yes, then this sort of a setup is correct. The only problem with this is the dependance on CDP. With CDP loss, the port-channels would go down.
'mac-pinning' is the recommended option for this sort of a setup. You don't have to bundle the interfaces on the 3750 for this and these can be just regular trunk ports. If all your ports are on the same stack, then you can look at LACP. The CDP option would not be supported in the future releases. In fact, it is supposed to be removed from 4.2(1)SV1(2.1) but I still see the command available (ignore 4.2(1)SV1(4) next to it) - I'll follow up on this internally:
http://www.cisco.com/en/US/docs/switches/datacenter/nexus1000/sw/4_2_1_s_v_2_1_1/interface/configuration/guide/b_Cisco_Nexus_1000V_Interface_Configuration_Guide_Release_4_2_1_SV_2_1_1_chapter_01.html
For migrating, the best option would be as you suggested. Create a new port-profile with mac-pinning and move one host at a time. You can migrate VMs off the host before you change the port-profile and can remove the upstream port-channel config as well.
Thanks,
Shankar -
Nexus 1000v - port-channel "refresh"
Hi All,
My question is, does anyone have any information on this 1000v command:
Nexus-1000v(config)# port-channel internal device-id table refresh
I am looking for a way for the port-channel interface to be automatically removed from the 1000v once the VEM has been deleted, currently the port-channel interface does not disappear when the VEM has been removed. This seems to be causing problems once the same VEM is re-added later on. Ports are getting sent into quarantine states and ending up in invalid states (eg. NoPortProfile state when there is actually a port-profile attached).
Anyway, if anyone can explain the above command or tell me how to find out more, it would be great, I can't find it documented anywhere and the context-sensitive help in the NXOS is vague at best.Brendan,
I don't have much information on that command, but I do know it wont remove any unused port channels. They have to be manually deleted if they're no longer needed.
The port Channel ID will remain even after a VEM is removed in case the assigned VEM comes back. When a VEM is decommisioned permanently, I'll do a "no vem x" to also remove the Host entry for that VEM from the VSM. This way the module slot # can be re-assigned to the next new VEM inserted. After adding/removing VEMs just do a "show port-channel summary" to see any unused Port Channel IDs, and delete them. It's a quick & painless task.
I would hope this wouldn't be a common issue - how often are you deleting/removing VEMs?
Regards,
Robert -
I want to create a port channel on my nexus switch which will be connected to my server.
will someone please share with me the configuration for the same ?Hi,
From server side create LACP port-channel and same from switch end.
Nexus-SW
=======
interface Ethernet1/1-2
description [connection to SRV-01]
switchport
switchport access vlan 10
channel-group 20 mode active
no shutdown
interface port-channel20
description [connection to SRV-01]
switchport
vpc 20
switchport access vlan 10 -
FI 6248 Nexus 5548 Port-channel problem
Hi all
I have a strange behavior between 2 FI and 2 nexus 5k configured as VPC , From a remote location and from my desktop I can ping odd ip and not even , from an other desktop in the same LAN the reverse, for both the tracert are good.
The only solution is to shutdown ports 1/1-2 on nexus A or FI A and in that case both desktops can ping both IP.
All seems OK, no log error , no error on interface , I give below some commands
What thing to know is that the nexus b has a L3 card , not the Nexus A , In fact I am waiting for a spare L3 daughter card.
On both NexusI have such configuration and status
interface port-channel201
description ucs-Fab-a
switchport mode trunk
switchport trunk native vlan 999
spanning-tree port type edge trunk
vpc 201
UCSM-PARIS-A(SSI153000ST)
Eth1/1 129 S I s UCS-FI-6248UP Eth1/11
UCSM-PARIS-A(SSI153000ST)
Eth1/2 174 S I s UCS-FI-6248UP Eth1/12
sh port-channel summary
201 Po201(SU) Eth LACP Eth1/1(P) Eth1/2(P)
sh mac address-table dynamic | i 1010
* 1010 0025.b5c9.481e dynamic 0 F F Po201
* 1010 0025.b5c9.481f dynamic 10 F F Po201
sh ip arp
10.203.136.21 00:01:05 0025.b5c9.481f Vlan1010
10.203.136.22 00:12:43 0025.b5c9.481e Vlan1010
On both FI A have such configuration and status
terface port-channel201
description U: Uplink
switchport mode trunk
pinning border
switchport trunk native vlan 999
switchport trunk allowed vlan 1,104,999,1010-1013,1020-1021,1500-1502,1510-151
2,1550-1552,1560-1561,1600-1602,1610-1619
speed 10000
sh port-channel summary
201 Po201(SU) Eth LACP Eth1/9(P) Eth1/10(P) Eth1/11(P)
Eth1/12(P)
sh mac address-table dynamic
* 1010 0025.b5c9.481e dynamic 0 F F Po201
* 1010 0025.b5c9.481f dynamic 0 F F Po201
sh cdp nei
E2RTR001(SSI1608085E) Eth1/9 120 S I s N5K-C5548UP Eth1/1
E2RTR001(SSI1608085E) Eth1/10 120 S I s N5K-C5548UP Eth1/2
E2RTR002(SSI16080F17) Eth1/11 151 R S I s N5K-C5548UP Eth1/1
E2RTR002(SSI16080F17) Eth1/12 136 R S I s N5K-C5548UP Eth1/2
Any ideas, A configuration I forgot on FI ?
Regards .In fact in the probem I described the path is Esx -> FAB A - > N5K-A (for layer 2) -> N5K-B (for L3) -> routing to the LAN
And what you told me is that such configuration is not supported with VPC configuration , so I need to wait to receive the L3 card for the N5k-A. and check later if I have the same problem.
thanks -
FCoE Port Channels on Single Nexus 5K - possible?
I'm looking for information regarding FCoE on a single Nexus 5548. I'm trying to set up a port channel from a Netapp filer's CNA adapters (2 twinax cables). I was told that for some reason port channels do not work on a single Nexus 5K design (i.e. no vPC), but I didn't know if that meant simply without the use of LACP. I've configured it in both fashions, and it seems that the VFCs do not want to come up, meaning that my filers cannot log in to the SAN. This behavior is what was described to me as what would happen if I tried doing a port channel in this way - basically I've bound the VFCs to the port channels, and since the port channels are composed of ports on the same switch, it just doesn't work. Seems odd that this would bet the case, though it would normally force me to simply buy a second N5K (sneaky sneaky).
Any tips?That's not my issue. I'm using only one Nexus 5K, meaning that if I want to have a port channel running between the 5K and the Netapp filers, I have to bind the virtual fibre channel interfaces to that port channel. I believe that in doing so, when there are more than one links as a member of that port channel, the VFCs simply go down by design and will not come up. For some reason VFCs require to be bound to a single physical interface, whether that interfaces is a single phyiscal port or a port channel that's only configured to have one port in it.
Either way, I had to configure the Netapp side to be active/passive. I've bound the VFCs to each port (total of 4, so 4 VFCs as well). No port channels are being used on the Nexus side. This is not ideal but it works.
I would still like to see some documentation regarding the behavior of the VFCs when presented with multiple links in this way. Has anyone seen any documentation regarding this? -
OSPF load balancing across multiple port channels
I have googled/searched for this everywhere but haven't been able to find a solution. Forgive me if I leave something out but I will try to convey all relevant information. Hopefully someone can provide some insight and many thanks in advance.
I have three switches (A, B, and C) that are all running OSPF and LACP port channelling among themselves on a production network. Each port channel interface contains two physical interfaces and trunks a single vlan (so a vlan connecting each switch over a port channel). OSPF is running on each vlan interface.
Switch A - ME3600
Switch B - 3550
Switch C - 3560G
This is just a small part of a much larger topology. This part forms a triangle, if you will, where A is the source and C is the destination. A and C connect directly via a port channel and are OSPF neighbors. A and B connect directly via a port channel and are OSPF neighbors. B and C connect directly via a port channel and are OSPF neighbors. Currently, all traffic from A to C traverses B. I would like to load balance traffic sourced from A with a destination of C on the direct link and on the links through B. If all traffic is passed through B, traffic is evenly split on the two interfaces on the port channel. If all traffic is pushed onto the direct A-C link, traffic is evenly balanced on the two interfaces on that port channel. If OSPF load balancing is configured on the two vlans from A (so A-C and A-B), the traffic is divided to each port channel but only one port on each port channel is utilized while the other one passes nothing. So half of each port channel remains unused. The port channel on B-C continues to load balance, evenly splitting the traffic received from half of the port channel from A.
A and C port channel load balancing is configured for src-dst-ip. B is a 3550 and does not have this option, so it is set to src-mac.
Relevant configuration:
Switch A:
interface Port-channel1
description Link to B
port-type nni
switchport trunk allowed vlan 11
switchport mode trunk
interface Vlan11
ip address x.x.x.134 255.255.255.254
interface Port-channel3
description Link to C
port-type nni
switchport trunk allowed vlan 10
switchport mode trunk
interface Vlan10
ip address x.x.x.152 255.255.255.254
Switch B:
interface Port-channel1
description Link to A
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 11
switchport mode trunk
interface Vlan11
ip address x.x.x.135 255.255.255.254
interface Port-channel2
description Link to C
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 12
switchport mode trunk
interface Vlan12
ip address x.x.x.186 255.255.255.254
Switch C:
interface Port-channel1
description Link to B
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 12
switchport mode trunk
interface Vlan12
ip address x.x.x.187 255.255.255.254
interface Port-channel3
description Link to A
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 10
switchport mode trunk
interface Vlan10
ip address x.x.x.153 255.255.255.254This is more FYI. 10.82.4.0/24 is a subnet on switch C. The path to it is split across vlans 10 and 11 but once it hits the port channel interfaces only one side of each is chosen. I'd like to avoid creating more vlan interfaces but right now that appears to be the only way to load balance equally across the four interfaces out of switch A.
ME3600#sh ip route 10.82.4.0
Routing entry for 10.82.4.0/24
Known via "ospf 1", distance 110, metric 154, type extern 1
Last update from x.x.x.153 on Vlan10, 01:20:46 ago
Routing Descriptor Blocks:
x.x.x.153, from 10.82.15.1, 01:20:46 ago, via Vlan10
Route metric is 154, traffic share count is 1
* x.x.x.135, from 10.82.15.1, 01:20:46 ago, via Vlan11
Route metric is 154, traffic share count is 1
ME3600#sh ip cef 10.82.4.0
10.82.4.0/24
nexthop x.x.x.135 Vlan11
nexthop x.x.x.153 Vlan10
ME3600#sh ip cef 10.82.4.0 internal
10.82.4.0/24, epoch 0, RIB[I], refcount 5, per-destination sharing
sources: RIB
ifnums:
Vlan10(1157): x.x.x.153
Vlan11(1192): x.x.x.135
path 093DBC20, path list 0937412C, share 1/1, type attached nexthop, for IPv4
nexthop x.x.x.135 Vlan11, adjacency IP adj out of Vlan11, addr x.x.x.135 08EE7560
path 093DC204, path list 0937412C, share 1/1, type attached nexthop, for IPv4
nexthop x.x.x.153 Vlan10, adjacency IP adj out of Vlan10, addr x.x.x.153 093A4E60
output chain:
loadinfo 088225C0, per-session, 2 choices, flags 0003, 88 locks
flags: Per-session, for-rx-IPv4
16 hash buckets
< 0 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
< 1 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
< 2 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
< 3 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
< 4 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
< 5 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
< 6 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
< 7 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
< 8 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
< 9 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
<10 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
<11 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
<12 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
<13 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
<14 > IP adj out of Vlan11, addr x.x.x.135 08EE7560
<15 > IP adj out of Vlan10, addr x.x.x.153 093A4E60
Subblocks:
None -
Port Channel Downtime/Convergence time when adding interfaces
I am looking to add a 3rd and maybe a 4th physical port to an existing port channel as we are running out of capacity, at peak we are pushing around 1.3Gb over the 2Gb channel and we are expanding services out of this location. My question is this, what will the downtime and convergence time be on the port channel when i add in the extra interfaces. Will i drop packets, will my customers notice any service disruption ?
Currently configured as follows:
interface Port-channel2
description DN Agg Switch 2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan add <very large vlan list>
switchport mode trunk
mtu 9216
mls qos trust dscp
spanning-tree bpdufilter enable
interface GigabitEthernet1/47
description Po2 AGG#1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan add <very large vlan list>
switchport mode trunk
mtu 9216
mls qos trust dscp
no cdp enable
channel-group 2 mode on
interface GigabitEthernet2/47
description Po2 AGG#2
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan add <very large vlan list>
switchport mode trunk
mtu 9216
mls qos trust dscp
no cdp enable
channel-group 2 mode on
Thank youDisclaimer
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Posting
I wouldn't expect any service impact when adding links to the bundle. -
Hello,
We have two Catalyst 4006 as core switchs in our network. Other access layer and server layer switchs (also Catalyst 4006) connect to the two core switchs; two Gigabit Ethernet links between one layer switch and one core switch form a port channel.
Now I add one Catalyst 4507 switch in the backbone, Il connects to each core switch by two GE links formed a port channel. The show spanning-tree command presente different port-channel type for the older(P2P Peer STP and the new port-channel (PO31, only P2P, not peer STP).
CDP-CO-SW-S17-01#sh spanning-tree vlan 2
VLAN0002
Spanning tree enabled protocol rstp
Root ID Priority 8192
Address 000a.418b.0401
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 8192
Address 000a.418b.0401
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
Po21 Desg FWD 3 128.661 P2p Peer(STP)
Po22 Desg FWD 3 128.662 P2p Peer(STP)
Po23 Desg FWD 3 128.663 P2p Peer(STP)
Po24 Desg FWD 3 128.664 P2p Peer(STP)
Po25 Desg FWD 3 128.665 P2p Peer(STP)
Po26 Desg FWD 3 128.666 P2p Peer(STP)
Po31 Desg FWD 3 128.671 P2p
Po44 Desg FWD 3 128.684 P2p Peer(STP)
Po45 Desg FWD 3 128.685 P2p Peer(STP)
What does the type Peer STP means? I made the same configuration for PO31 like the other port-channel, why it is not in Peer STP type?
Thank you.
Jessie DongHi Jessie,
You are running RSTP, which sends version 2 BPDUs. If the switch receives on a port version 0 BPDU (i.e. regular STP BPDUs), it will go to an STP compatibility mode and will start sending version 0 BPDUs on this port.
So basically, what you are seeing is that all your neighbors are running STP, except the one connected to Po31 who is running RSTP.
Regards,
Francois -
Config port channel across different type of media
Please help with the question if we could config port channel across different media type such as Gigabit and Ethernet 10/100 ports ? thanks in advance.
Hello,
no, that is not possible.
When assigning interfaces to a specific port channel, the interfaces must be all Fast
Ethernet or all Gigabit Ethernet. You cannot mix interface types within a single port
channel.
Check the following link:
Configuring the EtherChannel
http://www.cisco.com/univercd/cc/td/doc/product/l3sw/4840g/ios_12/config/4840ec.pdf
HTH,
GP -
Configuring Port Channel on Cisco 2960S-48LPS-L
When I try to move port channel connections to two of the SFP ports on our Cisco 2960S switch, one of the connections fail.
I am using two GBics, both are the same, GLC-T-A 1000Base-T.
The port channel work fine when I use g1/0/47 and 48.
The port channel work fine when using g1/0/48 and SFP 1/0/49
Port channel does not work when using SFP 1/0/49 and SFP 1/0/50.Cisco C2960S software version: 12.2(55)SE7. Using C2960S-UNIVERSALK9-M.
Port configurations for g1/0/48 - 51:
interface GigabitEthernet1/0/49
description Trunk to Cisco Core
switchport mode trunk
srr-queue bandwidth share 1 30 35 5
priority-queue out
mls qos trust cos
macro description cisco-switch
auto qos trust
spanning-tree link-type point-to-point
channel-group 2 mode on
When working, both ports show green status lights.
ort Name Status Vlan Duplex Speed Type
Po2 Trunk to Core connected trunk a-full a-1000
*: interface is up
IHQ: pkts in input hold queue IQD: pkts dropped from input queue
OHQ: pkts in output hold queue OQD: pkts dropped from output queue
RXBS: rx rate (bits/sec) RXPS: rx rate (pkts/sec)
TXBS: tx rate (bits/sec) TXPS: tx rate (pkts/sec)
TRTL: throttle count
Interface IHQ IQD OHQ OQD RXBS RXPS TXBS TXPS TRTL
* Port-channel2 0 0 0 0 8390000 909 970000 551 0
Age of the Port-channel = 0d:10h:57m:35s
Logical slot/port = 5/2 Number of ports = 2
GC = 0x00000000 HotStandBy port = null
Port state = Port-channel Ag-Inuse
Protocol = -
Port security = Disabled
Ports in the Port-channel:
Index Load Port EC state No of bits
------+------+------+------------------+-----------
0 00 Gi1/0/47 On 0
0 00 Gi1/0/49 On 0
When not working, one port shows green, then other port status light is off.
GigabitEthernet1/0/49 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 3c0e.233f.a531 (bia 3c0e.233f.a531)
Description: Trunk to Cisco Core
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000BaseTX SFP
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:09, output 00:00:19, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 1954000 bits/sec, 213 packets/sec
5 minute output rate 38000 bits/sec, 16 packets/sec
2935639 packets input, 880524431 bytes, 0 no buffer
Received 2211794 broadcasts (310067 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 310067 multicast, 0 pause input
0 input packets with dribble condition detected
370489 packets output, 66729219 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
GigabitEthernet1/0/50 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 3c0e.233f.a532 (bia 3c0e.233f.a532)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex, Auto-speed, link type is auto, media type is Not Present
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
--More-- 0 output errors, 0 collisions, 1 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
Let me know if you need more info. -
Port-channel problem with WiSM
Has anybody met following similar problem:
I put WiSM into slot 3(also tried slot 6) of 6506(sup720-3B, s72033-adventerprisek9_wan-mz.122-33.SXH.bin), using following command to setup the port-channel:
interface Port-channel1
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 5
switchport trunk allowed vlan 1-1000
switchport mode trunk
int range g3/1-4
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 5
switchport trunk allowed vlan 1-1000
switchport mode trunk
channel-group 1 mode on
I can use "session slot 3 pro 1" to login to the WiSM, but can't ping WiSM's management IP address from 6506, then I find the port-channel has problem, only G3/1 is up and included in the channel, G3/2-4 are up but line protocol is down, then I found from the log that: "AESUT: %EC-SP-5-CANNOT_BUNDLE2: Gi3/2 is not compatible with Gi3/1 and will be suspended (qos-card type unavailable for Gi3/2 or Gi3/1)". It says those GE port are not compatible for qos-card type, but I checked the configuration, all GE using the same configuration. Don't know why, maybe a bug? Appreciate for any feedbackI have the same problem, but it has something to do with QoS. When you disable "mls qos" on the switch, the port-channel will function normal again.
It doesn't help when you configure "mls qos trust dscp" on the port-channel!!!!!
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