Cisco Switching/Routing :: Would Nexus 5K Can Have 2 Separate Connections To Each VDC

Jan 23, 2012

We are thinking of following classic design, would Nexus 5K can have 2 seperate connections to each VDC? Nexus 7K w/ different VDC (Internal / DMZ ) Can Nexus 5K have a VPC connection to Nexus 7K to Internal VDC as well as DMZ VDC, and seperate traffic?

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Cisco Switching/Routing :: Does The Nexus 5548P Support 1 Gig SFP Connections

Jan 17, 2012

Does the Nexus 5548P support 1 gig SFP connections ? Here is the image file we are running ?
 
bootflash:/n5000-uk9.5.0.2.N2.1.bin

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Cisco Switching/Routing :: Packet Discard On Nexus 5020 Link To Nexus 5K

Feb 23, 2011

We are facing issue of continous packet discards On nexus4001L link (int po2) to Nexus5020 switch. Nexus4001L is installed in IBM blade center server and we have FCOE enabled in this setup. [code]

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Cisco Switching/Routing :: Nexus 7000 With Fabric Extenders Nexus 2000?

Mar 15, 2013

I have been tasked to replace the existing Cat 6500 and 3750 switches by Nexus 7000 and Nexus 2000.I was told initially my boss plans to get 2 x Nexus 7000 and then eventually blow up to 4 x Nexus 7000s.For Nexus, is there a list of tasks / points that i need to consider for building the initial design?
 
Can i just link the Nexus 7000 like the following?
 
N7k-A    =========   N7k-B
|                                   |           
lots of N2ks               lots of N2ks

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Cisco Switching/Routing :: Nexus FEX Transceivers SNMP MIB Nexus 5000

Dec 22, 2011

Struggle to find the SNMP MIBS of the Nexus 5000 FEX tranceivers.

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Cisco Switching/Routing :: Datacenter Design With 2 Nexus 5K And 4 Nexus 2K?

Nov 13, 2012

we are planning a Nexus datacenter project with this layout:Our experiences with Nexus switches are not so large until now and the manuals are very extensive.Both N5K´s should be connected directly with all 4 N2K switches. I did not find a layout like this in the manuals. Only a design,where only 2 N2K are connected to one N5K, with this fex config:Now I´m not sure if it is right to make a config like this with the same slots and fex´s or with different slots and fex´s.

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Servers :: Make 2 Separate Lan Connections On One?

Jun 8, 2011

i need to use two LAN connections one of INTERNET and one of internal server

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Use Two Separate Internet Connections On Same Network?

Feb 4, 2013

Internet connection come from an ethernet port in the wall. Cat 5 then goes to the switch and then to various computers.Desktop #1 has a IP of 10.1.1.133, sub 255.255.255.0, default gateway 10.1.1.200, DNS 10.1.1.4I want to be able to attach a cat5 cable to the LAN port of a Linksys WRT 54G going from the switch.What is the settings I need to select in the Linksys router for this to work.DHCP - Off. I guess the LAN IP of the router must fall in the range of the Main DHCP pool. Could I select anything in the 10.1.1 100's as long as another computer did not have the same IP. The starting IP of the linksys router stays in 192.168.1...... and doesn't looked like it can be changed. Does any Laptop that connects wirelessly to the linksys router need a static IP or can it obtain an IP address through

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Pending - Networking With Separate Internet Connections?

Feb 15, 2011

im intending to setup a small office network through a sever at my work and would like to know if it is possible to have the network running with each pc having its own internet connection.in theory this should work by having the internet connected via usb which will leave my ethernet ports free for the network..i would just like to know if this route will work just like that or will i need to have a rethink.

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Get Separate Wired And Wireless Connections To The Internet?

Sep 3, 2012

I currently have a Linksys WCG200 wireless gateway cable modem. The computers in my office are connected to it via ethernet cables and I use the wireless signal in the rest of the house for my laptop and guests. I'm (still) using Win XP Pro on all the computers.I'm about to start a work at home job doing customer service and I am not allowed to have a wireless network that might broadcast customer information, so I need to be able to prevent that from happening. I'm assuming I'll need two separate networks?All computers need internet access and if it's possible I would still like to be able to share files between the two networks (assuming I need 2 different networks), but it's not the end of the world if I can't do that.

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Netgear DG834GT - 192.168.0.1 - Connecting Two Routers With Separate ADSL Connections

Aug 9, 2011

how to connect 2 routers that both have an ADSL connection. When attempting this the Belkin router will lose the ADSL connection after a random amount of time.

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Cisco Switching/Routing :: Separate Network On 3550-12G?

Sep 26, 2012

How do I configuring Private Class A [10.206.90.0/24] and Private Class C [192.168.1.0/24] Network on Cisco 3550-12G Switch.

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Cisco Firewall :: 6500 Separate Internal Server / HQ Network From 3 / 4 Different External Connections

May 21, 2012

I am using a 6500 with FWSM. I need to separate an internal server/HQ network from 3 or 4 different external connections. The external networks do not necessarily need to be isolated from each other.I have the option of using a 3 layer model: L2 Access layer to SVIs on the Distribution layer and then L3 to the 6500.L2 Access, connecting directly to the 6500s, with the SVIs on the FWSM.Is it better to have the FWSM outside the MSFC or Inside? Am i correct in thinking that "inside" vs "outside" is determined by whether the SVI's are configured on the FWSM or the MSFC? is there any performance impact from having the FWSM doing the routing instead of the MSFC.If the vlans are all configured on the FWSM, what is the 6500 doing, other than providing switch ports?

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Cisco Switching/Routing :: WS-C3550-48 Adding A Separate Subnet

Jan 14, 2013

We have two switches; a WS-C3550-48 and a WS-C3548-XL connected via fiber uplink ports. Both switches are on the same subnet 192.168.1.0 /24. I would like to change the subnet of the second switch, WS-C3548-XL, to be on 192.168.2.0 /24. Would it be possible to assign 192.168.2.x IP addresses to both uplink ports to achive this?
 
Or would I need to create a separate VLAN and assign both GigabitEthernet0/1 uplink ports to this VLAN?

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Cisco Switching/Routing :: 1800 - How To Use Gateway On Separate Network

Sep 30, 2012

I've just started out playing with a Cisco 1800 router to gain some knowledge of Cisco devices before taking a CCNA. I also have a 2950 switch but will start with the router.
 
I'm using an Android phone as a wireless Internet access point.  This issues IP addresses by DHCP in the 192.168.43.x range with 255.255.255.0 subnet.
 
Also I have a Linksys WRT54G router running DD-WRT firmware acting as a wireless bridge to the Android phone, and it has 4 LAN ports.
 
This bridge is up and running and I have successfully connected my laptop to the Linksys for testing and can use the Internet provided by the phone.
 
Connected to the Linksys is a Cisco 1800 router. Connected to the router is my Citrix XenServer PC and a NAS box.
 
The XenServer and NAS are on another network 07.05.19.x range with 255.0.0.0 subnet using their own static IPs. One of the virtual clients on the XenServer will be a DHCP server to service other virtual clients.  All still in the 07.05.19.x range.
 
Basically I want the devices on the 07.05.19.x IP range to be able to use the Internet gateway at 192.168.43.1 to access the Internet.
 
How would I set up my 1800 to achieve this?
 
Also, am I right in understanding that the 1800 will ignore DHCP leases from the Android phone due to it being a Layer 3 device.

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Cisco Switching/Routing :: SA520 And SG300 Vlan Not Works When Try To Separate Them

May 21, 2012

i am first time to trying to make Vlans. I managed to do 2 vlans to SA520 to ports 1 and 2. But when i try to separatethem to SG300 with web management it doesnt work. Vlan 1 works fine, i untagged wanted ports and forbid vlan 2 ports.In Vlan 2 there vice versa, is this right way to do? Both Vlans has their own DHCP range as i do them to SA520.

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Cisco Switching/Routing :: 3750 / 3500 - Separate Network Into 2 VLANs

Feb 13, 2012

Currently we have an Ava ya IP Office switch running on the same network as our PC clients. I would like to seperate the two network into 2 V LAN's.

We have a mixture of Catalyst 3750 switches and some older 3500 models.Where do I start? Should I leave the PC's and servers on the default V LAN and just move the IP handsets?

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Cisco Switching/Routing :: 5510 Isolating Switch Ports For A Separate Network

Feb 2, 2012

I have to configure failover Active/Standby on my ASA 5510.I am wondering how i could do for the outside interface, i mean, actually the ASA1 outside interface is linked directly to our Internet router.So now if i have to add ASA2 connecting to that router i will need a switch between them.I have already a switch for DMZ & LAN.The thing is that i will have to allow 3 switchs ports to communicate with each others.

- 1 for ASA1--outside
- 1 for ASA2--outside
- 1 for Internet router
 
How could i isolate these 3 ports to make them communicate alone ? Should i use VLAN for that ?And if i use VLAN, will this require to make any change of configuration on my firewalls (ASA1 & ASA2) outside interface ?I am a bit lost with this, if i am correct i will not have to do some "vlan tagging" on the firewall itself ?

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Cisco Switching/Routing ::1002 Layer 3 Ether-channel Vs Two Separate Links

May 19, 2013

We were going to create a 2 port, layer 3 etherchannel between a 1002 router and a 3750X layer 3 core switch. We wanted to create bunled link between them but, now we are going to be putting a Riverbed device between the router and core switch. Because of this, would it be best to abandon the idea of creating a layer 3 etherchannel and just have 2 links from the router and core switch and have traffic load balance between the 2 links?The Riverbed will have 2 connections into it from the Core switch and 2 connections into it from the 1002 router. I was hoping to keep the layer 3 etherchannel but, do you think it would be best to create 2, /29 nets and have the router/Riverbed and Core Switch/Riverbed load balance.

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Cisco Switching/Routing :: 3750-x / Separate Module To Enable Stackwise And Stackpower?

Aug 22, 2012

As I understand Cisco Catalyst 3750-x supports stackwise and stackpower technology.Do I need to purchase a seperate module to enable stackwise and stackpower? Or are stackwise and stackpower modules included be default on the switch already?

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Cisco Switching/Routing :: 3750 Stack To Upstream ISP Separate Switches - MAC Flapping

Mar 11, 2012

I have an issue with a Cisco 3750 switch stack which is connected to two seperate upstream Cisco 3750's which are administered by an ISP.  The ISP is experiencing MAC address flapping from one of my VLAN SVI's i am using to route traffic upstream
 
[code]...
 
As you can see I utilise a VLAN SVI to route traffic to the upstream 1.1.1.2 (illustration only) IP.  As per the diagram of the topology attached, the ISP is receiving a MAC address flapping error confirming the SVI MAC address from my switch stack is being learnt on the trunk port connecting switch 1 and switch 2, and also the port (Gi1/0/48) directly connected to my switch stack. As these are all Layer 2 links essentially being passed upstream and then connected between the two ISP switches, we have a 3 way triangular loop formed.
 
If I was to remove the port channel configuration from the two ports associated with the VLAN SVI, am i right in suggesting this would still form a layer 2 loop?  The two ports would still be a member of the SVI VLAN, and it is the VLAN MAC address which is being learnt by the two ISP switches on different interfaces.

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Cisco Switching/Routing :: 2224TP / Servers With Dual NICs Connected To Separate FEXs

Mar 26, 2012

Our current topology is a single N7K with two 48port 10Gb F2 linecards and FEX 2224TP in the server racks.  In a few of the racks that house important servers, we have placed dual FEX 2224's.  Each FEX has 2 10Gb links back to the N7k (each link on a separate LC).  I've tried to create a port-channel for the important servers in such a way that each NIC on the server is connected to a separate FEX - but its failing (simple drawing attached).  I've read multiple posts saying this is possible, and others that say its not.  I've also submitted a TAC case and have been told it's impossible to port-channel interfaces on separate FEXs connected to a single N7k - but I find this an impossible limitation and want to verify it's actually right.  Is this really a limitation?

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Cisco Switching/Routing :: Nexus 7010 / VSS - Does It Support Virtual Switching?

Apr 9, 2010

Does the nexus 7010 support virtual switching yet?  All of the posts I have found from about a year ago say that it is going to be supported, but there were no dates listed.  I heard the same thing from Cisco a while back, but haven't followed up with it.If it is supported finally are there any configuration guides available for it?

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Cisco Switching/Routing :: Facebook Forum Data Center Switching With Nexus 5000

Oct 8, 2012

Lucien is a customer support engineer at the Cisco Technical Assistance Center. He currently works in the data center switching team supporting customers on the Cisco Nexus 5000 and 2000. He was previously a technical leader within the network management team. Lucien holds a bachelor's degree in general engineering and a master's degree in  computer science from Ecole des Mines d'Ales. He also holds the  following certifications: CCIE #19945 in Routing and Switching, CCDP, DCNIS, and VCP #66183

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Cisco Switching/Routing :: Nexus 5010 Support For Inter VLan Routing

Jan 10, 2012

Can nexus 5010 supports inter v lan routing , as there is no core switch and router available in current network.

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Cisco Switching/Routing :: Nexus 5000 LAN Routing Connection Deployment

May 16, 2013

We have our Nexus as our default gateway (101.1) and the default VLAN1 is setup with two subnets 101.X and 102.X. The DHCP server is using a superscope setup to accomodate the overflow of devices requesting IPs on 101, so when 101 is consumed persons are able to obtain a 102.X IP address. The setup is basic on superscope. The issue is some times the routing to the firewall with a 102.X is not always 100%. Somedays all goes well and the 102 subnet is routed out to the firewall and its a good day. However, such as today a 102.X address is not routing as it did 24 hours ago. I am perplexed as to why this is behaving unpredicatable. Here is running-config for VLAN1 to show the 102 as secondary address to VLAN1.

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Cisco Switching/Routing :: Nexus 7010 - Inter-VLAN Routing On Multilayer VPC Environment

Feb 16, 2011

you find attached my network architecture with 2 Nexus 7010 on core layer and 2 Nexus 5020 on distribution layer, each one with 1 N2148T fabric extender switch. PC-A1 and PC-A2 are connected to one N2148T, PC-B1 is connected to the other N2148T. Nexus-7000-1 is HSRP Active for all VLANs, Nexus-7000-2 is HSRP standby. PC-A1 and PC-A2 are connected to VLAN A, PC-B1 is connected to VLAN B. PC-A1 and PC-A2 have the same default gateway correspondent to IP HSRP on VLAN A. It happens that PC-A1 is able to ping PC-B1 while PC-A2 is unable to ping PC-B1. If I issue a traceroute from PC-A2 I see Nexus-7000-2’s physical IP address as the first hop even if Nexus-7000-2 is HSRP standby. After the first hop the traceroute is lost. If I shutdown Port-channel 20 on Nexus-5000-2, PC-A2 starts to ping PC-B1.I can’t understand what’s wrong in this architecture.

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Cisco Switching/Routing :: Nexus 7010 / 5510 - Run OSPF As Layer 3 Routing Protocol Between VPC Peer Links

Mar 25, 2012

I have an environment where i have two nexus 7010 switches, along with 2 nexus 5510's. I need to run OSPF as a layer 3 routing protocol between the vpc peer links.  I have 1 link being used as a keep alive link, and 3 other links being used as a VpC link.
 
1) Is it best to configure a separate Vpc VLAN i.e 1010

2) Is it best to configure a vrf context keep-alive

3) just have the management address as the peer ip's.

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Cisco Switching/Routing :: Nexus 5548P Routing

Feb 6, 2012

I have a pair of 5548P switches with the L3 daughter cards installed.  Using the base license as I just need RIP routing.  I have the two switches setup and have the RIP routing feature enabled.  When I "turn on" routing using RIP I do not get any routes from my existing L3 switch (3750).  I probably don't have routing setup correctly.  With the 3750 IOS, I just turned on RIP with the router rip command and added a couple of network statements.  On the nexus I have run router rip {instance} and left it at that.  I am not getting any routes from my 3750.  The 5548s are using the management ports and are connected to my existing network with L2 trunks.  Does any know of a setup guide for RIP?  I have used the Nexus 7000 RIP guide but still can't get it to work.

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Cisco Switching/Routing :: 10G Ports On Nexus 7K?

Jul 2, 2012

I''ve trying to bring up ports on a N7K-M108X2-12L card using X2-10GB-SR modules.
 
All ports are in a VDC and configured to accept the M1 card:
 
vdc_id  vdc_name                          state               mac                 type        lc
------  --------                          -----               ----------          ---------   ------
2       cam-cor-csw-sfy-01                active              64:a0:e7:43:f0:c2   Ethernet    m1 f1 m1xl

[Code]....

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Cisco Switching/Routing :: 7010 - How To Add Two Nexus 5K In DC

Feb 18, 2013

This is regarding Nexus core switch 7010. We are already running two nexus 7K with ten Nexus 5k. Currently we are going to add two new Nexus 5k in our DC. In the 7K we already running two VDC's.

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Cisco Switching/Routing :: Nexus 5k High Fan RPM

Jun 8, 2013

The fans 1 & 2 in Module 1 on the Nexus5K are still experiencing the very high RPM and speed issue.
 
I have replaced the fan from another operational Nexus5K, and the fans are fine in the other Nexus. The replacement fans also have the same issues, so it is not a fan hardware issue.
 
There are no threshold alarms. the only log entry that is related to this is as follows:
 
%NOHMS-2-NOHMS_ENV_ERR_FAN_SPEED: System minor alarm in fan tray 1: fan speed is out of range on fan 1. 7950 to 12500 rpm expected. I have provided the output for both the fan detail and the temperature.
 
N5K-01# sh environment fan detail
Fan: --------------------------------------------------- Module  Fan  Airflow        Speed(%)  Speed(RPM)              Direction --------------------------------------------------- 1       1   

[Code].....

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Cisco Switching/Routing :: Per-VLAN QoS On Nexus 5K?

Feb 22, 2012

I was reading a QoS walkthrough earlier to try to solve my problem and I noticed that in IOS, you can specify "match vlan" in a class map.  This is not available in NX-OS. I'm not doing any routing on the 5K so I cannot match on ACL, and port where traffic is received is a trunk sharing other types of traffic I'd like to classify elsewise.
 
How can I match traffic on a per-VLAN basis?

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