I have a 2232 dual homed to 2 5548's via a port-channel/ vpc. I have one 5548A and configure the port for the 2232 with a vlan, plug into that port and it doesn't come up (inactive). I go to 5548b (Primary) and configure the port and it comes up.
View 3 RepliesI currently have two Nexus 5548UP switches in my environment running the latest code (n5000-uk9.5.1.3.N1.1a.bin). Both of these switches are connected via a VPC Peer Link (two ports on each switch in an Ether Channel) and a VPC-Keep Alive Link (a dedicated port). Hosts connect to each switch via a VPC for both IPV4 and FCOE.
As of right now, everything works. I currently have a stack of two 3750 switches that each Nexus is connected to. This stack is doing all the Intra-VLAN Layer 3 Routing for the Nexus Switches. However, I plan to get rid of the 3750s, and move the Layer 3 Routing the Nexus 5548's, so the backplane is 10 Gig instead of 1 Gig.. I have the Layer 3 Daughter Card installed in both switches, as well as the LAN_BASE license.
So, at the moment, I am trying to find the best way to accomplish Layer 3 Routing on these two switches. Since the Nexus switches are not stacked, and the FCOE portion of HA is taking care of by the Multipathing agent on each host, I believe am just concerned with providing Intra-VLAN routing in an HA build where if one switch goes down, VLANs still route through the other switch.
Again, since the Nexus switches are not stacked, I am guessing the best way to handle this is with HSRP, but my experience with that has always been with routers that have a switch in the middle. Can I make HSRP work without having a switch between the Nexus switches? Can I track the VPC peer link, or how do I do it? I guess I am looking for a sample config.
Let's pretend I had two VLANs:
VLAN 20:
10.20.20.254 - GW and 10.20.20.0/24
VLAN 40
10.40.40.254 - GW and 10.40.40.0/24
And I wanted the Nexus switches to route these VLANs regardless of which switch was up / down..
I want to configure management for some Nexus 5548's?I wanted to manage the switches via an SVI. I have read the following document which gives details about the Management SVI but doesn't answer all questions.[URL]I am not running any layer 3 functionality on the switch, no layer3 license (which it mentions in the above link) Will I still be able to create a management SVI. I know I will need to enable the feature 'interface-vlan' to setup a Management SVI, does that require a license?
View 6 Replies View RelatedAt the core of my network I have two Nexus 5548's with the routing/L3 daughter installed. They have a default route that points to my ASA 5520 for Internet access. I have configured a VLAN that I do not want to have access to the Internet. What is the best way of preventing this access? ACL on the Nexus or Firewall rules on the ASA?
View 1 Replies View RelatedI have a Nexus 5548 installed (layer 2 device only) with several 10G ports supporting IBM P770 systems and a TSM (Tivoli Storage Manager) system on a single VLAN. All of the Nexus 5548 ports are configured for jumbo frames. I was ask to install a new server on the same VLAN as the others but as 1G port without jumbo frames to allow communications with the TSM server. I'm assuming that the 1G port for this new server without jumbo frames configured on the Nexus 5548 will not be unable to communicate with the TSM server that is on the same VLAN with it's Nexus 5548 10G port configure using jumbo frames.
View 5 Replies View RelatedI am trying to configerate static switchports on our nexus 5548 (nx-os 5.1(3)N1(1)) over snmp.The support-list url... states that the CISCO- VLAN- MEMBERSHIP- MIB is supported.I can read the information, but if i try to set vmVlan or vmVlanType i get the message: "SET failed. ("ip-address"). Information: Not Writable."I can use set_request in general (e.g. CISCO-CONFIG-COPY-MIB). how to set the vlan and vlan-type over snmp?
View 3 Replies View Relatedsh fex
FEX FEX FEX FEX
Number Description State Model Serial
------------------------------------------------------------------------
105 FEX0105 Image Download N2K-C2232TM-E-10GE
sh fex
FEX FEX FEX FEX
Number Description State Model Serial
------------------------------------------------------------------------
105 FEX0105 Offline N2K-C2232TM-E-10GE
[code].....
I am configuring DHCP pool for voice vlan on cisco 2921 router.
Here is the setup.
2921 router -> 3750 -> 2960 PoE -> 7942 IP Phone
Router Config
ip dhcp excluded-address 10.146.54.1 10.146.89.50
!
ip dhcp pool VoiceVlan
network 10.146.54.0 255.255.255.0
subnet prefix-length 24
dns-server 10.144.68.32 10.144.68.33
option 150 ip 10.146.68.36
default-router 10.146.54.1
netbios-name-server 10.144.68.32 10.144.68.33
netbios-node-type h-node
[code]....
As per my understanding, Cisco Nexus 2232 can only connect to HP c7000 Chassis if we are using a Pass Through Switch in the HP c7000. Cisco Nexus 2232 can only connect to End Hosts and not to a switch. Is there a New Feature added in Nexus 2232, which enables it to connect to a Switch like HP Flex Fabric ?
View 1 Replies View RelatedI 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]
View 7 Replies View RelatedI am in the process of migrating our existing server farm subnets to our new Nexus server farm and I discovered something I wasn’t expecting. My intention is to migrate our existing legacy server farm which is comprised of for paired 3750 switches off of our core 6509s and onto the Nexus and connect them to the 2232s via multi gig port-channel connections, two port channels per switch stack.
NOTE this is expected to be a temporary move as next year we intend to install additional N2Ks and move servers over to these directly. But to minimize the outage/downtime it will be better to move the subnets and switchs all at once.
These connections would be grouped 1 gig connections as port channels, one from each switch into one of the two 2232s.
Problem I discovered is Cisco does not intend to have switches connected to the Nexus and it immediately disables the ports when they see BPDUs.
I found a config that does work and it does fail over from one port-channel connection to the other but with the limitation that when the original port channel comes back online it does not fail back over to the original one, an acceptable situation for us. But I am wondering if Cisco would support this design if we did experience issues down the road.
The only issue I really see is to get it to work the config is different on the two N5Ks, see the pert config below for the connections. Both are running the same OS
augs1-ba-ar17# sh ver
Cisco Nexus Operating System (NX-OS) Software
TAC support: [URL]
[Code].....
What s the fabric speed (backplane speed) of a Nexus 2232 10G EX?What is the forwarding rate (Mpps) of the same 2232 FEX?
View 6 Replies View Relatedgetting a SF300 to properly route IP between 2 VLANs. I've watched the demo video and performed everything it showed, but I get the most bizarre half-way results. I haven't done anything on Cisco routers in about 15 years, so I'm a little rusty.
We have an office LAN with a cable modem/router for Internet access where the modem/router has IP address 192.168.1.1. We have the usual 24 bit prefix net mask. The SF 300 is connected to this network on port 1.
I have configured port 1 to VLAN 1, interface in Access mode, assigned a static IP address of 192.168.1.36, which is a free address on our office LAN. I have configured port 2 to VLAN 2, interface in Access mode, assigned a static IP address of 192.168.3.1 I put a static route in the modem/router, pointing 192.168.3.0/24 to 192.168.1.36.
I have a PC on 192.168.3.10 attached to port 2.
The SF300 can ping 192.168.3.1, but not 192.168.3.10. 192.168.3.10 can ping 192.168.3.1. It can also ping 192.168.1.1, and can pull up an HTTP router admin page from 192.168.1.1. 192.168.3.1 can be pinged from anywhere on 192.168.1.x, but 192.168.3.10 cannot be pinged from 192.168.1.x. Finally, 192.168.3.10 cannot ping any other addresses on 192.168.1.x except 192.168.1.1, and cannot reach the Internet.
Here's my configuration:
switch6d919d#show runconfig-file-headerswitch6d919dv1.3.0.59 / R750_NIK_1_3_647_260CLI v1.0set system mode router
file SSD indicator encrypted@ssd-control-startssd configssd file passphrase control
[Code].....
I have Nexus 5548UP, Version version 5.0(3)N2(2b), with a flat configured network. Customer has put several IP subnets on one Vlan. In one subnet is an Siemens SPS wich connects to a Server. This SPS is not reachable since I send a ping from the N5k, then everything works fine. Sniffering that port no arp requests from the N5k are captured. That hapens with every device (Siemens SPS) in the network. Every other clients and server are working fine and there are no problems.
View 1 Replies View RelatedI am trying to get our DCNM to discover the 5548. When I put my credentials for that appliance. I get this error .Failed Device x.x.x.x OS Version 5.1(3)N1(1) is not supported . The DCNM version we have is 5.2(1)S74.
View 1 Replies View RelatedI have a Nexus 5548 Recently restart itself for no reason I ran the command:
sh system reset-reason
----- reset reason for Supervisor-module 1 (from Supervisor in slot 1) ---
1) At 469203 usecs after Sat May 11 14:02:07 2013
Reason: Reset triggered due to HA policy of Reset
Service: eth_port_sec hap reset
Version: 5.1(3)N1(1a)
sh processes log details
Start type: SRV_OPTION_RESTART_STATELESS (23)
Death reason: SYSMGR_DEATH_REASON_FAILURE_SIGNAL (2)
Last heartbeat 6.09 secs ago
RLIMIT_AS: 189894144
System image name: n5000-uk9.5.1.3.N1.1a.bin
I've been searching in Google/Cisco about the eth_port_sec hap reset and cannot find any reason, just something about the same error but in different technology:
[URL]
CSCub36000 #SNMP polling on eth_port_security objects no longer causes an eth_port_sec hap reset.I just to want to be sure, is the same reason...Or do you know something than can cause it on a Nexus Switch?
We have just purchased and installed the L3 daughter card for our 5548UPs and have also installed the L3 Enterprise Services pkg. The problem is, I cannot enable the EIGRP feature even though we have the Ent Svc lic. After doing a little more research, I see that the Lan Base lic is required to enable the L3 card and many of the L3 features (the card is currently in an "offline" state).
From what I have read on this board, the Lan Base lic is a free license that should be included with the L3 daughter card -- however, Cisco licensing will not issue me that license without a sales order (even though a Nexus engineer said it was included, the licensing group will not issue with an official sales order). Well, our vendor ordered the card and the Ent Svcs lic but for some reason we were never sent a PAK for the LAN Base lic.
using the 55xx as a L3 Distribution switch or even as a Core. By enabling the L3 features does it allow you enabled L3 SVI's for VLAN interfaces or are there interfaces on the daughter card that are used for routing instead?
View 5 Replies View RelatedThe 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?
I encountered problem while trying to copy file from Nexus 5548 to my ftp server (proteus - 192.168.12.220 - the Nexus switch is able to resolve name proteus correctly to 192.168.12.220). See below the working and not working scenarios. I have serached through Cisco Bug Database but unable to find any related bug associated to this problem. This Nexus is running the following NX-OS version.
n5000-uk9-kickstart.5.1.3.N1.1a.bin
n5000-uk9.5.1.3.N1.1a.bin
Working (without specifying the username and full path)
[Code].....
We have two 5548 switches connected to a pair of 6509 running in VSS mode. I am trying to understand the benefit of having bridge assurance on the uplink ports.
If we have the command spanning-tree port type network enabled we cannot do a non disruptive upgrade. If there is bridge assurance on the uplink it warns you of this. Yet if I do not run bridge assurance on the uplinks I can do a upgrade without any disruption.
Why in god would I enable bridge assurance on this VPC link if I cannot do a non disruptive upgrade?
I need to upgrade the code on our two Nexus 5548's in order to facilitate the installation of a few FEX's, but due to the fact that seemingly all of my port-channels are in the STP DESG forwarding state, an ISSU upgrade is not possible. Everything connected directly to our 5548's are utilizing VPC's, including an HP Blade chassis, and several Netapp devices. If I follow the normal upgrade route, should I experience an outage, or should the secondary switch just continue passing traffic?
View 1 Replies View RelatedI'm trying to setup SNMPv3 on a Nexus 5548. We are using SNMPv3 on 3750's without any issue, but haveing issues getting it setup on the Nexus.I have been using the following link for the setup following it line by line. [URL]The part that I'm having issues with is when I try to enforce SNMP message encryption on a per user basis. When I issue snmp-server user (username) enforcePriv, I get warning: unable to update CLI users database. reason: role does not exist grounp not found.
View 1 Replies View RelatedI am using cisco Nexus5548 and trying to enter a snmp community, but it doesn't accept it. I enter a community name that is less than 32 characters, with symbols, numbers and letters.
View 2 Replies View RelatedI am setting up a new environment with 2 5548's and some 2248TP-1GE Fex's and Im running into an issue. I have the peer link and peer-keepalive link that appear to be good. When I configure the fex and vpc for the fex manually on each switch without pre-provisioning the slot the fex comes online and everything appears to be good. I can see all the ineterfaces when doing a sh int br and the sh fex detail shows all good. When I do the exact same thing but pre-provision the slot the fex stays in an offline state. Ive tried disabling the port(s) connected to the fex while configuring everything then enabling them but same thing. [code]
View 5 Replies View Relatedregarding PVLANs and the Nexus, my understanding is that we cannot configure Private VLANs on a FEX trunk port with a NX-OS release older than 5.1(3)N2(1) for the Nexus5548... Is there any known workaround for this limitation (appart from performing a SW upgrade)?
View 2 Replies View RelatedI am working for an Air Force client and am adding a handful of 5548s into their network. My question is how Tacacs+ is configured. My hands are tied in regards to testing in an operational environment so I want to ensure the configs are correct prior to deployment/maintenance window and avoid any remote issues.
I have read the "Cisco Press - TACACS+" config guide and it was somewhat vague in regards to operational deployment.
My basic NX-OS configs are as follows:
- feature tacacs+- tacacs-server key 7 "002A52xxxxxxxxxxxxxxxx8"- tacacs-server host 128.xx.xx.xx timeout 10- tacacs-server host 128.xx.xx.xx timeout 10- tacacs-server directed-request
When I try to set the following command string, aaa authentication login default group tacacs+ local, the NX-OS asks me the input a "server group name". There are no server groups configured. Do I need them? Can I get by without configuring a group name because the client probably will not.
The Cisco IOS devices are configured with normal aaa authentication/authorization parameters. Also, do the VTY ports default to sshv2 and the correct tacacs+ parameters with the "transport input ssh" command (not available)?
I am trying to install SFP-GE-T module on Nexus 5548UP Switch, but is giving the ‘SFP validation Failed’ error. The details of the switch is given below
Model : N5K-C5548UP-FA
The interface is configured with speed 1000 before inserting the module, still we are getting the same error. PFA logs for more details We have 8 Nos of SFP-GE-T modules , all are giving same error. We tried to insert the module on onboard as well as expansion module.
The same module is working fine on Cisco 3750X-24T-L Switch As per the Hardware installation guide , SFP-GE-T transciever is supported on N5K platform. Please extend your support in configuring SFP-GE-T module on N5K platform? We tried with SFP-GE-S module on the same switch , and the same is found working fine.
We have successfully peered two 5548UP switches together and separately we have successfully peered two 5596UP switches together. Works great and is our standard going forward for data center switching. I've been casting about Google and Cisco looking for an answer to this question:
Is it possible to have more than two 5500 class Nexus switches participate in a peered vPC configuration? For instance, can I connect a single FEX to four 5500 class switches in a vPC configuration? The question is more academic than actionable. Even if the answer is yes we probably wouldn't be in a position to implement something like this for a while.
I am trying to interconnect a pair of Nexus 5548 at adjacent sites, using 2 2960-S switches at each site, the reason being that the Multimode Fiber between the sites will only support 100mb and I need this up while I finish having SMF laid.
I have attached a diagram, just debating whether to use etherchannel or vPC - would like to hear some opinions...
Assume the interconnect between the 5548's needs to be 802.1q trunk
just a simple question. Is it possible to use a nexus 5548 UP switch as a layer 3 router between different vlans on the switch without the layer 3 card ? Or is there no 5548 as a router with the layer 3 card ?
View 2 Replies View RelatedMy Nexus is a 5548-UP model, NX-OS version : 5.1(3)N2(1b)
I try to debug an OSPF and an ICMP problem using the debug ip ospf command and the debug icmp command but not output appear on the terminal. As the switch is remote, I entered the terminal monitor command of course.
SG01NX01# terminal monitor
SG01NX01# debug ip ospf 1 packets
SG01NX01# show debug
[Code].....
Two 5548 switches running switch profile and it got out of sync (probably because one of the switches lost power before it has chance to save configure). Once the switch profile out of sync, you can't make any change to the switch profile any more, verification will fail.Is there any good way to get the switch profile re-sync without recreating it?
View 2 Replies View Related