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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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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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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Jan 15, 2012
a Customer ask me to configure a etherchannel between two Switches C3500 XL Version IOS 12.0 follow the first configuration what I done and the output error show me by switch:
Sw01(conf)# interface port-channel 1 % invalid input detected at '^' marker.
I have to do something before add an new port-channel interface ?? why the Sw01 does not accept my configuration ?
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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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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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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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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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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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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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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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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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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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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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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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Jan 12, 2013
I just purchased a Linksys Cisco E900 router and hooked it up to my Internet cable. The Internet service that my ISP is giving me is PPPoE, fiber link (100 Mbps).
I did the set up. I connected my computer (via Ethernet cable) and my laptop (via wireless) to the router.
Now... there are other wireless networks around me. The WI-Fi channel my router fixed to is 1, apparently - saw it from the settings. But I can't find a menu anywhere in the router's gateway (192.168.1.1) from where I can change the wireless channel, wireless bandwidth etc.
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Nov 17, 2012
I am using ASA Version 8.2(1) , I want to limit the vpn users to use less bandwidth of my Interlink to access something on inside network
example : source vpn pool
Destn : inside network
how can achive this with QOS config.
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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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Feb 10, 2012
Does DCNM (DCNM-N7K-K9) ver 5.2 on Nexus 7k manage nexus 5k??
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Feb 18, 2013
I have a 3750g connected to a "core" switch stack of 7 other 3750g's via 2 GigE ports in a trunk. This is currently in a switchport mode access port- channel so only the default vlan data is sent over. Now we have a need due to physical location of these switches, to allow vlan20 (DMZ) from this 3750g to the switch stack. I will configure a few ports on the switch stack for vlan20 and they need to be able to talk to the stand alone 3750g.To do this I will change the port channel on both endpoints to
-switchport trunk ecapsulation dot1q
-switchport mode dynamic desirable
also making the appropriate change on the interfaces belonging to this trunk.My question is, now that its a trunk port that carries multiple VLANs, how much is the bandwidth reduced on that 2gbps link?I have a very active VLAN (10) on the stand alone switch, but on the core I'm not going to be assigning VLAN 10 to any ports. So does traffic from VLAN10 even come across the trunk (wasting bandwidth) if no ports on the core side are assigned to it? I really just need vlan 1 and 20 (for now).
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Oct 14, 2012
On Nexus 7000s I want to limit bandwidth of particular IP. I can do this using proper configuratio of IP ACL, policy map and class map. But what if I dont have information on interface? Can I apply bandwidth control for particular IP without knowing the interface?
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Nov 24, 2012
i have a big problem because i configure a vlans with vrf and HSRP but, when i do "show hsrp brief", dont show this interfaces and, i can ping virtual IP. it seems hsrp dont work.
SWSERVSCAMILO_N7010_A#
interface Vlan405
description smsc-fwatlas1
no shutdown
[Code] ....
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Jul 19, 2012
I used the following commands to limit users on my wireless network (WLC 5500) and a Nexus 7000. The previous cisco doc only covers the 6500 and some commands have changed. Tested and working except the PIR gives an error, post up if you know why, otherwise enjoy!
Note Wireless Network assumed to be 172.21.0.0/16.Note This will limit each wireless user to 1 MbpsNote The PIR (Peak Infomation rate, also know as burst) is ignored in following commands, unknown at this time why.Create ACLs:
ip access-list acl-wireless-downstream 10 permit ip any 172.21.0.0/16 ip access-list acl-wireless-upstream 10 permit ip 172.21.0.0/16 any class-map type qos match-all class-wireless-upstream match access-group name acl-wireless-upstreamclass-map type qos match-all class-wireless-downstream match access-group name acl-wireless-downstreampolicy-map type qos police-wireless-upstream class class-wireless-upstream police cir 1 mbps bc 200 ms pir 1536 kbps be 200 ms conform transmit exceed drop violate droppolicy-map type qos police-wireless-downstream class class-wireless-downstream police cir 1 mbps bc 200 ms pir 1536 kbps be 200 ms conform transmit exceed drop violate drop
1.Apply police-wireless-upstream on the incoming port from the controller.
interface port-channel130 description *** LAG for WLC1 *** switchport mode trunk switchport trunk allowed vlan 80,130,255,600 service-policy type qos input police-wireless-upstream
2.Apply policy-wireless-downstream on the uplink LAN/WAN ports.
interface port-channel101 description *** L3 Port Channel to Core VDC *** no switchport service-policy type qos input police-wireless-downstream ip address 10.70.10.18/30 ip router eigrp 10
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Sep 2, 2012
I have Cisco 3845 with two Gigabit interfaces configured as port-channel with sub interface and with QoS. However shape does not work.
[code]...
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Jan 27, 2013
I have a pair of 5596 running in a vPC with Nexus 2248 connected to each N5596. When I do the command "show fex" I get the following output on the 2nd 5596
Number Description State Model Serial
------------------------------------------------------------------------
101 FEX101 AA Version Mismatch N2K-C2248TP-E-1GE SSI16390705
102 FEX102 AA Version Mismatch N2K-C2248TP-E-1GE SSI163704AD
122 FEX122 Online N2K-C2232PP-10GE SSI16370195
I'm running version 5.1(3)N1(1) on both of the 5K's. I have looked through all the configuration and I am not understanding why I am getting this error. I have tried to look it up on [URL], but not having a ton of luck.
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Oct 14, 2012
if I can use the encrypted port as unencrypted ethernet ports? url.. Each individual port on the Cisco Nexus 5010 switch is numbered, and groups of ports are numbered based on their function. The ports are numbered top to bottom and left to right.There are 20 to 28 ports on the Cisco Nexus 5010 switch, depending on which GEM is installed.
The 20 fixed ports form group 1 and are named 1/port_number. Ports 1 through 16 are unencrypted Ethernet ports. Of these, ports 1 through 8 are 10-Gigabit Ethernet and 1-Gigabit Ethernet-capable ports. Ports 17 through 20 are encryption-capable Ethernet ports.
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Feb 7, 2013
what is active/passive port-channel..? and how it will do load balancing when my network traffic is flowing on both the ports.
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Sep 13, 2012
I have Cisco 3845 with two Gigabit interfaces configured as port-channel with subinterface and with QoS.However shape does not work, why? [code]
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Nov 2, 2012
are port-channel interfaces supported in 6500s -w- SUP-2T?
Inquiring if able to bundle a couple of 10GB ports on a 6908 via port-channeling.
12.33 IOS doesn't it, but haven't completely confirm whether 15.1 IOS does.
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Jun 11, 2013
So everything I've read on Cisco's documentation here: URL says that I can create a port-channel on two physical interfaces that will uplink to a VSS pair. However, the command is not recognized. What am I missing? I've tried executing "channel-group #" on the physical interface and tried creating the port-channel 1st and neither commands exist. I haven't seen it listed anywhere if it is only available after a specific piece of ASA software. If it is the software what version at a minimum I need to upgrade to? Below is an output from a show version
Cisco Adaptive Security Appliance Software Version 8.0(4)
Device Manager Version 6.1(3)
Compiled on Thu 07-Aug-08 20:53 by builders
System image file is "disk0:/asa804-k8.bin"
Config file at boot was "startup-(code)
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Sep 6, 2012
Is there a known bug for Nexus 7K version 6.0(4) related to route redistribution?I have few vlan interfaces and being redistributed to the BGP.vlan interfaces are all up ang pingable.After configuring redistribution, vlan route is not in the bgp table.sho ip bgp is saying "path invalid"
BGP routing table entry for 10.165.101.192/28, version 26302
Paths: (3 available, best #3)
Flags: (0x180c0021) on new-list, is not in urib, need resync with RIB, exported, has label
vpn: version 47719, (0x100002) on xmit-list
local label: 492294
[code]....
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Mar 6, 2012
So I have a current port-channel between two 6ks that I need to upgrade. There's too much traffic and the port buffers on the SUP7203B sort of suck. Microbursts are causing overruns like mad. Im going to move the 2x1gig port-channel to a 6724 and make it a 3x1gig port-channel. The switches carry production traffic across the link to the tune of about 400 meg during the lowest load time. Initially, I thought that I couldn't move the port channel without temporarily taking down the link but I think I have a workable solution now. Has anyone done this successfully before? Im curious what others have done. Also, to make matters worse, the existing port-channel is 'mode on' and I want to migrate to 'mode active' in the new channel
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Oct 30, 2012
I want to do the inter vlan routing packet tracer file url...configuration of MLS are as bellow can anyone tell me why vlan on switch0 can not ping vlan on switch1. [code]
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