Cisco Switching/Routing :: Create A Port Channel Between HP Servers (4 Nic) And Two Nexus 2k?

May 9, 2012

I am trying to create a port channel between HP servers (4 nic) and two nexus 2k.  The server side its a single team with 803.2ad fault taulerence and on the nexus side it have created two port channel (port channel 1 for nexus 2k1 and port channel 2 for nexus 2k2) and made them ACTIVE (channel group mode active)
  
But when i add a another server on different ports and port channel them the same way as the above server on nexus 2k1 and nexus 2k2, the first server stops pinging. so i have to sht down the first port channel and reopen them - then it works, however it says NO NETWORK ACCESS on the servers (running windows 2008). the only way is to reboot the server  i cant be doing this on a production network.

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Cisco Switching/Routing :: Create A Port Channel That Spans Two Different Nexus 2248TP Switches

Oct 20, 2011

I have a router on  which I would like to create a port channel that spans two different Nexus 2248TP switches, and then create a couple subinterfaces on the router's po interface.  I've done this successfully on my primary router, but the config doesn't seem to work on the backup router.  The primary is running IOS 15, while the backup is running 12.4.25d advanced IP.  I do see the trunk come up from the switch side, and my router subinterfaces and po interface show up, however I'm not able to get anywhere from the router.  It's not even able to reach other hosts on the same network.  As soon as I remove the port channel config and use the physical interface and assign the same address used on the port channel interface, everything works as expected and I have connectivity.
 
interface Port-channel21
no ip address
hold-queue 150 in
!
interface Port-channel21.248
encapsulation dot1Q 248 native
ip address 100.100.100.1 255.255.255.0

[URL]

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Cisco Switching/Routing :: Nexus 5018 / Port Channel Down?

Feb 7, 2013

We are running nexus 5018 in our DC.What is the difference betwen "channel-group 214 mode active"  and " channel-group 216" Any difference?.. because i have problem with this config we are going build a server config? 
 
We have problem with porth channel down.
 
5K# sh int po71
port-channel71 is down (No operational members)
vPC Status: Down, vPC number: 71 [packets forwarded via vPC peer-link]

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Cisco Switching/Routing :: 4510R-E / Unable To Create A Port-channel And Apply Auto-qos For VOIP

Sep 15, 2011

I have a 4510R-E chassis with SUP7-E running IOS XE version 3.01.01.SG.  I am unable to create a port-channel and apply auto-qos for VOIP.If I configure auto-qos on the physical interfaces, I get this message when I try adding them to the port channel:
 
"The attached policymap is not suitable for member either due to non-queuing actions or due to type of classmap filters."
 
Auto-qos is not an available command in the port-channel interface configuration, but if I try adding the service policies that were created by auto-qos to the port channel manually, it lets me apply the input policy but on the output policy I get this message:
 
"A service-policy with queuing actions can be attached in output direction only on physical ports."
 
With the input policy applied to the port-channel interface, I tried addign the output policy to the  physical ports and I got this message:
 
"A service-policy with non-queuing actions should be attached to the port-channel associated with this physical port."
 
Is there a way to get the auot-qos policies applied to the port-channel properly?

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Cisco Switching/Routing :: Nexus 5548 - Hardware Port Channel Resource

Mar 30, 2012

I am having hard time in understanding the hardware port channel resource concept in Nexus 5Ks. Which scenario is considered as a hardware port channel and which is not. According to Cisco documentation, 5548UP switch with layer 3 daughter card only supports 8 hardware port channels, does this mean we can connect only 8 dual homed Fex to those 5Ks.Will a dual homed fex consumes a hardware port channel?

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Cisco Switching/Routing :: Nexus 5k Adding And Removing Vlans In Port-channel (vpc)

Dec 4, 2012

I am a bit confused by the output of 'show run' and 'show run switch-profile' that pertains to a port-channel interface configured in a switch-profile. My main gaol is to find out how can I add/remove the allowed vlans the port-channel (configured as trunk) carries. The setup is like this. I have 2 N5k in vPC domain and Etherner1/11 on both switches is configured as trunk vPC that connects to a core switch. When I issue ‘show run’ for the port-channel and physical interface I get the following output. [code] From above it seems the switch-profile configuration is missing the 'switchport trunk allowed vlan' in the port-channel interface. If want I to remove vlan 30 from the allowed vlan, should I go under the switch-profile mode and remove vlan 30 from the allowed list even though the switch-profile configuration seems to be missing this.

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Cisco Switching/Routing :: Nexus 4000I Port Channel Link Flap

Nov 8, 2011

We have a couple of IBM blade chassis with Nexus 4000I 10G blade switch in it. Four 10G ports from each Nexus 4000I switch are bundled into a port channel and connected to Nexus 7K. On the 4k end, one port in the port channel is doing down and coming up as an idividual port. After few minutes it is going down again and coming up as a port-channel member port. It is happening quite offen. [code]

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Cisco Switching/Routing :: Nexus 5000 To Change VLan Port Channel

Jan 29, 2013

I'm trying to change a vlan on a port-channel but I am getting this error when I apply the change:" error: command is not mutually exclusive",I have done this in the past but I cannot remember exactly what I should type to apply the change.

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Cisco Switching/Routing :: Change Number Of Internal Port-channel On Nexus 5000

Jan 3, 2012

I'm in the middle of a Nexus 5000 project and recognized today while configuring port-channels, that some of the interface numbers are reserved for internal use.
 
Is it possible to change or configure which port-channel interface numbers are allocated for internal use by NX-OS?
 
Unfortunatly I wasn't able to find a solution for this issue in the offical Nexus documentation, the search function of this forum or Google. If I did miss something or didn't look careful enough at the Nexus docs, I'm also happy with RTFM (... fine manual) responses and links to the info :-)
 
Additional info:
 
Nexus5k(config)# interface port-channel 128 ignored port-channel128: internally used, configuration not allowed
 
Port-Channels 111, 113, 115, 119, 121, 200, 211, 222 were created manually, but 127 - 129 were not.
 
Nexus5k# show port-channel usage
Total 11 port-channel numbers used
============================================
Used  :   111 , 113 , 115 , 119 , 121 , 127 - 129 , 200 , 211 , 222
Unused:   1 - 110 , 112 , 114 , 116 - 118 , 120 , 122 - 126 , 130 - 199
201 - 210 , 212 - 221 , 223 - 4096

[Code]......

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Cisco Switching/Routing :: Interface Resets Causes Port Channel To Flap Nexus 5010?

Feb 20, 2012

Here is an example of what each switch logs when a server drops offline.  Sample logs taken between 5:32am and 5:35am on Feb 20.   This particular one was having problems all weekend.  Switch #1 encountered over 2000 interface resets.  The corresponding VPC port on Switch #2 only had 13 resets.
 
NEXUS SWITCH #1
 2012 Feb 20 05:32:09 q91-sw01-5010 %ETH_PORT_CHANNEL-5-FOP_CHANGED: port-channel10: first operational port changed
from Ethernet1/10 to none
2012 Feb 20 05:32:09 q91-sw01-5010 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel10: Ethernet1/10 is down
2012 Feb 20 05:32:09 q91-sw01-5010 %ETH_PORT_CHANNEL-5-PORT_DOWN: port-channel10: port-channel10 is down
2012 Feb 20 05:32:09 q91-sw01-5010 %ETHPORT-5-IF_DOWN_PORT_CHANNEL_MEMBERS_DOWN: Interface port-channel10 is down (
No operational members)

[code].....

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Cisco Switching/Routing :: Configure Access Ports Into Port Channel On Nexus 7K Switch?

Feb 14, 2013

Can i configure access ports into port channel on Nexus 7K switch.If possible then provide the complete configuration.....

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Cisco Switching/Routing :: Nexus 7000 - (service Policy Type Queuing Output) On Port-channel?

Jan 24, 2013

We are planning to implement the following policy map for egress traffic on an Nexus 7000:
 
policy-map type queuing dd-1p3q1t-8e-out-10G    class type queuing 1p3q1t-8e-out-pq1      priority level 1      shape percent 10     class type queuing 1p3q1t-8e-out-q2        bandwidth remaining percent 5    class type queuing 1p3q1t-8e-out-q3        bandwidth remaining percent 5    class type queuing 1p3q1t-8e-out-q-default        bandwidth remaining percent 90
 
We are using two N7K's to which is one N5K connected through a vPC. From the N5k we use a port-channel with 4 * 10G. Two of this four ports are connected to on N7K and the other two are connected to the other N7K. On the n/K's we are using vPC.
 
My question now are:
 
1. Where i have to connect the policy map? To the port-channel or on each physical interface?

2. When i have to connect this policy to the port-channel, how does i have to set the shape percent, when i would like to reserve 10% from the 40G?    Does i have to set the shape value to 5% on each N7K because vPC?

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Cisco WAN :: Nexus 5000 - Can't Assign Port To Port Channel

Feb 9, 2012

I'm unable to assign port E2/1 to port channel. I get following error:
 
NEXUS5K(config)# int e2/1
NEXUS5K(config-if)# switchport mode trunk
NEXUS5K(config-if)# channel-group 14 mode active

[Code].....

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Cisco Switching/Routing :: Ether-channel Between Nexus 2232 And Blade Switch 3020

Aug 6, 2012

I try to connect a cisco blade switch 3020 to Nexus 2232 with etherchannel, but when I connect the second link a obtain flapping on vlans. [code] why the vlans are flapping ? it's something wrong on the config ? [code]

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Cisco Switching/Routing :: Unable To Create L3 SVI On Nexus 5548

Jun 11, 2012

The Nexus 5548 is running 5.1.3.N2.1a and has the L3 daughter card (N55-D160L3)I have the EIGRP feature enabled. By the way, when doing a 'sh feature' four EIGRP features show up like this: [code] To create the L3 SVI, I go into config mode and attempt to type 'interface vlan 10'. but this doesn't work. These are the only options under the keyword 'interface':
 
- ethernet
- loopback
- mgmt
- port-channel
 
I must be missing something simple but can't seem to see what that is.  What do I need to do in order to create an L3 SVI on this 5548?

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Cisco Switching/Routing :: Nexus 5010 - Unable To Create More Than 256 VLAN In N5k

Jun 23, 2012

I am not able to create more than 256 VLAN in Cisco Nexus 5010 switch. While creating I am getting "No VLAN resources available for VLAN creation" Details below -
 
Switch model - 5010
Software : NX OS 4.0 (1a)
 
Error Message:
Nexus_5010(config)# vlan 417
ERROR: No VLAN resource available for VLAN creation.

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Cisco Switching/Routing :: Connecting Servers To Nexus 5K

Mar 14, 2012

We have 2 nexus 5K installed in our data centre recently and we are connecting new three servers to nexus switches. Each server has 2 10GB ports . 1 port of serverA is connected 5K1 and other port is connected 5K2 ( sameway other 2 server connected to Neuxs 5K1 and 5K2 Switches).So do we need to create each VPC with Portchannel (like VPC 1,2 and 3 ) for each server connection?

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Cisco WAN :: Port-channel Between Nexus 7000 And 55900?

Jan 16, 2011

I have configured my Nexus 7018 and 5548 as  follow (see diag attached).Both 7000 and 5500 are vPC pair(po1and po2). Now I have created port-chanel between 7018and 5548 as port channel PO3 on 5500. Would it give me 20g bandwidth as PO3?or 10g only uplink to 7018? Do I need to config all four 10g links in PO3 on both 5500  and 7000 switches to achieve max b/w and failover?

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Cisco WAN :: Nexus 5K (version 5.0.3) With Port-channel Bandwidth?

May 22, 2012

I have port-channel configured on Nexus 5K (version 5.0.3) with below configuration.
 
interface Ethernet1/9
  switchport mode trunk
  switchport trunk allowed vlan 60
  speed 1000
  channel-group 105 mode active

 [code]....
 
We have added GLC-SX-LH module to E1/1 and E1/10 and speed is set to 1000 (1Gig) Now other side of E1/9 and E1/10 are not connected. Port-channel status is down

Po105        1     eth  trunk  down    No operational members      1000(D)  lacp
 
show interface port-channel 105 shows different bandwidth (100) MTU 1500 bytes, BW 100000 Kbit, DLY 10 usec,question is under interface port-channel105 speed 1000 command inserted automatically.Now if we connect otherisde of interface, during port-channel comes up.what  will be the port-channel interface bandwidth ? will it change to  2Gig(2000). Why speed 1000 command inserted automatically on  port-channel.Since it is migration, we want to be more specific on the port-channel configuration?

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Cisco Switching/Routing :: 5020 / LACP Between Nexus 5K (VPC) And HP Servers?

Jan 22, 2012

I have two N5K (5020) switches with NX-OS - 5.0(3)N2(1). These two switches form VPC domain: peer-link = 2*10Gb ports (1/17-18) and peer-keepalive link over managements ports.Also I have two HP servers with two 10 Gb ports on each server.Each server conected by one link to each N5K switch (1/9-10). N5K downlinks configured as access ports with LACP Active mode.There is only one VLAN (1).When "no shut" command entered on N5K access ports - ports going in "not connected" status, begin flap and then going in "linkFlapErrDisabled" state.In attach - "sh run" from N5K.

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Cisco Switching/Routing :: Will All 4-ports Of N5K Will Be Same Port-channel

Sep 12, 2012

Have 2 N2K with dual-connections to both 2 N5K, will all 4-ports of N5K will be the same port-channel. N2K as well ?

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Cisco Switching/Routing :: Port-Channel Between 4507

Nov 29, 2011

I need to configure a port channel between two sw 4507R. with port Giga, but those port are in different modules.
  
Sw-1
interface GigabitEthernet5/48
description **** Conexion Switch-2*****

[Code].....

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Cisco Switching/Routing :: Nexus 7000 Two Servers In Different Location But On Same Subnet

Mar 15, 2013

I have forgot this technology name, but, I remember it can achive on between Nexus 7000s in two location, and also between two catalyst 6500.Can I ask if it can be done between one nexus and one catalyst 6500?

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Cisco Switching/Routing :: VPC Pair Of Nexus 7K And Servers Connected Directly

Jan 9, 2012

My Data Center has one single core switch where is connected several servers, one port is the link to the router wan and other port is the link to the FW, my boss wants to install 2 nexus in order to replace the single switch. All my network has only one address, for example 192.168.10.0/24 if I connect two nexus 7010 in VPC and Domain, each nexus is going to has 2 modules with 48 port 10/100/1000 rj45 and i wan to connect servers directly to each nexus, with this figure i'm going to have a group of servers connected in two different nexus, Do they can have the same network 192.168.10.0/24 considering that the nexus are in the same vdc and vlan and have only one gateway for both groups? If the answer is positive, which nexus would be the gate way for that address, the primary or secondary? Or i must have a different address for both group of servers, i mean for example 192.168.10.0/24 and 192.168.12.0/24?thus each nexus would be the gateway for that new address?
 
To have two nexus connected by VPC in a Domain mean that one computer connected to one nexus can share the same address or vlan with other computer connected to the other nexus????

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Cisco Switching/Routing :: Nexus 7000 Setup - How To Connect Servers

May 28, 2013

We have a setup of 2 Nexus 7000 chassis and several fexes (N2K-C2248TP-1GE). The fexes are connected through a port-channel to a single nexus 7000 (no vpc). (Fex 1 to Nexus 1, fex 2 to Nexus 2, fex 3 to nexus 1 etc).Are there guidelines on how to connect a server to those fexes.
 
I can see several possible scenario's at our site. I have drawn some scenario's on a design. I can't find detailed information on which setup is possible and which is not. The goal is to have as much redundancy as we can.When using scenario 1, do I configure an orphan port on the uplink to this server?

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Cisco Switching/Routing :: 3750 As A Port Channel Bridge?

Dec 7, 2011

I have 3750 core/distribution switches with routing enabled in two offices connected with copper link and L3 port channel interfaces. NewOffice#2 has moved about 5 miles farther away from office#1 and I have to deploy new core/distribution switch connect it to old core#2 via F.O and move all access switches with it. Old core will stay in old #2 offices as a bridge between office#1 and new office#2 Office#1core<->copper (Ethernet) <->oldoffice#2core<->f.o. <->new office#2core How I should configure port channels ports on oldoffice#2 core to act as bridge between office#1 core/dist and newoffice#2 core/dist without changing anything else (ip, etc) on whole network

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Cisco Switching/Routing :: 6509 Trunk To Port Channel

Apr 22, 2012

I have 2 Cisco 6509 switches linked together via single Fibre as a trunk.I want to change this to a port channel where I will add another 3 fibre ports to the port channel but what order do I do this to minimise any disruption.

1-Configure PortChannel and add the 3 new ports, this will bring up the Port Channel but what effect will this have on traffic currently going over the single Trunk link? Will spanning tree go mad, how will switches react?

2-Convert existing Trunk link to Portchannel then add in new ports to PortChannel, I guess in doing this there will be a small hit on traffic as it changes to a port channel.

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Cisco Switching/Routing :: Lost Port Channel Between 6513

Feb 24, 2012

We have 2 6513's that are linked via 2 10 gig interfaces, using an LACP channel.I received an alert this aft stating that the far 6513 was unreachable and the port channel int PO3 had gone down, the 2 10 gig interfaces had also gone down on either side. 5 mins later PO3 had resestablished itself and has been fine since. [code]

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Cisco Switching/Routing :: 3750 - How To Setup Port-channel

Jan 22, 2012

I set up a port-channel trunk between a acess switch 3750 ( int gi2/0/1 and gi2/0/2) and Core 6509( int gi7/11 and gi7/12).
 
On the both the 3750& 6509 I configured:
 
interface Port-channel15
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100,103
switchport mode trunk
 
But the ports on the core g7/11 and g7/12 keep shutdown and when I do show interfaces port-channel 15, it show the interface is shutdown.

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Cisco Switching/Routing :: Min-Link Configuration On 3750-X Port-channel

Feb 27, 2013

I am building a new network and intended on using the min-link feature on my port-channels between a 3750-X series switch and Nexus 4k.

However reading further into this it seems this feature is only supported on higher end models. I cannot find any reference to the min-links feature in the 3750-X configuration guide. Is this an available feature?

The 3750-X model is WS-C3750X-24T-L running IOS 12.2(55)SE3 IP Services

My thoughts is that the is only an LACP supported feature so I may not see the command until I have entered an LACP specific command on the port-channel but unfortunately I do not have a 3750X to verify this on at present.

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Cisco Switching/Routing :: Can Port Channel In 3825 Connect To Two Different Switches

Jan 17, 2012

We have one 3825 router used as voice gateway. For redudancy, we want to connect it to two different switches which has STP and HSRP running. Can I create a port-channel with two Giga interfaces in 3825 and connect to two different switches? Should I configure port channel in switch with only one port in each port-channel? I know server can be connected to different switches with NIC teaming. I just want to mimic that kind of setup. I did one time for port-channel in 3825, but it was connected to a stacked 3750X. So it's different case now.

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Cisco Switching/Routing :: ME380x Port-channel From One Switch To Two Switches

May 8, 2013

I am trying to configure port-channel from one switch to two switchs, and only one interface of each switches make part of the port channel.Cisco IOS Software, ME380x Software (ME380x-UNIVERSALK9-M), Version 12.2(52)EY4, RELEASE SOFTWARE (fc1) [code]

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Cisco Switching/Routing :: 6500 Setup In VSS Configuration - Port Channel ID

Jan 22, 2012

I have a pair of 6500's setup with VSS and there is currently only one link between then. However one end of the link is on Po10 and the other end is on Po25.  If I move the Po25 over to Po10, will things break? It seems to be working fine now. I'm about to add a second link and I'm concerned about the current configuration.  It makes more sense to me to have both ends of the same link on the same port-channel ID.  I've seen documentation which states otherwise however.
 
interface Port-channel10
no switchport
no ip address

[Code]....

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