I am trying to modify the OSPF admin distance for a specific subnet under version 5.1(5) of the Nexus 7K, but this command does not appear to be available.
View 1 RepliesI have a Nexus 7K router, has 2 ospf process, ospf 1 and ospf2. OSPF1 has several subnets in 10.1.0.0/16 subnet range , OSPF2 has several subnets in 10.2.0.0/16 subnet range. I want to summary OSPF 1 subnets to 10.1.0.0/16 then redistribute to OSPF2.but OSPF 2 didn't receive 10.1.0.0/16. Below is the config
ip prefix-list all seq 10 permit 0.0.0.0/0 le 32
route-map all permit 10
match ip address prefix-list all
router ospf 1
router-id 10.10.3.9
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We are looking to deploy two Nexus 7009 cores at our two datacenters. They are approximately 2 miles apart. We are hoping to have 10G Dark Fiber between the buildings and therefore dedicate a pair for FCOE between the cores using 10G Long Range SFP's. I read that the Nexus 5000 series had a limit of ~3 km for FCOE. Does the same hold true for the 7000 series? I thought I read somehwere that the buffers were larger on the 7000 series and therefore would be able to do ~30 km.
View 2 Replies View RelatedI am designing a network for my client where I have to implement a 10 Gig end to end connectivity. The major factor of concern from my management is about scalability (space to include more 10Gig servers as the nodes grow up). I have suggested Cisco 5596UP with 2232 PP as this gives ample amount of 10Gig ports. The setup has to be implemented across 2 different datacenters located 40 Kms apart, connected with 10Gig DC Interconnect.
I understand that Cisco Nexus 2232 is a Layer 2 Only switch and would need to communicate with parent 5K switch very frequently. Is it necessary to have the 2K and 5K pair in the same datacenter or in proximity? Is it possible to have the SFP uplinks connected to the DC interconnect? Because we have two datacenters located 40 Kms apart and having 1*Layer 3 - 5K switch at DC A with Layer 2 - 2K nexus Switch at DC B will be cost effective. We do require more 10Gig ports and not much requirement on Layer 3 usage. What are the type of communication that would be much frequent between 2K and 5K?
I was trying to setup a Nexus (5596 running NX-OS 5.1(3)N2(1)) to use the "ip ospf name-lookup"command that I am using on IOS-based routers. Unfortunately this command does not appear to be supported on NX-OS and I cannot find a replacement.Is this another feature that's left out of NX-OS?
View 4 Replies View RelatedI have 2 Nexus 5596UPs with a layer 3 cards that are exhibiting some very peculiar behavior. The systems are running 5.1(3)N1(1).I have configured 2 VRF contexts each running their own OSPF process. There is a static gateway of last resort configured on each VRF, which is to an upstream pair of 5585X's in Active/Active. Each OSPF process has the "default-information originate always" command configured, however, backbone neighbors are not recieving a gateway of last resort from the 5596UPs. The applicable configurations are show below. All other routing information is passing correctly between devices in the network. This network is not production, it is a proof of concept for a larger implementation.
View 26 Replies View RelatedDoes the Nexus 5548/5596 switch support OSPF ECMP?
Also on OSPF and ECMP, the load-balancing method at the multiple links for Catalyst 3750 is per IP packet or per destination IP?
We are cutting over from 6500 IOS to Nexus 7000 and have hit "Maximum ospf feature instance limit reached." as we configured up the 7 existing ospf processes - the limit is 4. These existing processes are for various vrf contexts we have. I see you can run multiple vrf contexts under one process - but how does that work in a mixed environment where the ospf neighbours are still ios 6500s? They still expect to see different ospf process id per vrf.
View 2 Replies View RelatedI'm looking to redistribute static routes in to OSPF on a Nexus 7k. To do this I'll be using a route-map with a match statement. My question is can you match routes using an ACL, a prefic-list or both. The reason that I ask is that in some docs I've read it states the following:
IP access lists—(For policy-based routing only). Match based on source or destination IP address, protocol, or QoS parameters. This tends to indicate that you can't use IP access lists for the match criteria for redistribution.
I have a Catalyst switch that is redistributing some static routes into OSPF. These are received on a Nexus 7K and appear in the database however the 7K does not add them to its routing table, one of the routes is ignored and not added. I haven't got a clue why this is happening.
The routes on the Catalyst are as follows with ID of 172.30.255.22:
ip route 172.24.59.0 255.255.255.0 10.56.7.46
ip route 192.168.168.0 255.255.255.0 10.56.7.62
on the 7K the database shows:
172.24.59.0 172.30.255.22 1374 0x80001a44 0x1a48 0
192.168.168.0 172.30.255.22 1374 0x80001a45 0x6c5b 0
The routing table shows:
sh ip ro 172.24.59.0/24IP Route Table for VRF "default"'*' denotes best ucast next-hop'**' denotes best mcast next-hop'[x/y]' denotes [preference/metric]
172.24.59.0/24, ubest/mbest: 1/0 *via 172.30.253.10, Po7, [110/20], 20w4d, ospf-NCC, type-2
sh ip ro 192.168.168.0/24IP Route Table for VRF "default"'*' denotes best ucast next-hop'**' denotes best mcast next-hop'[x/y]' denotes [preference/metric] Route not found
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.
Ok I didn't setup my OSPF on my 7010. Today I found out that any static route I put into my 7010 gets sent into to my MPLS network. My 6509's you have to "Tag" the static rout for this to happen. Was under the impression the same was necessary for the 7010 or at least it had to "match" an access list. How can I fix the below so that by default all static routes are not resdistributed into OSPF?
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I'm currently working on a plan to migrate our 6500's over to our new 7010's. At the time of the migration I want to tighten up our OSPF design and configure OSPF for "passive-interface default" then allow only those interfaces that should have OSPF neighbors to send the hellos. The issue is that the command is not showing up under the OSPF process. What's even more interesting is that the Nexus 5.x Unicast Routing Configuration Guide shows that the "passive-interface default" command should be an option to enter.
I'm currently running version 5.1(4) (though looking to upgrade to 5.2 during my migration testing). I would rather configure the passive-interface via the routing process versus having to enter it on every interface.
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?
View 8 Replies View RelatedI created new VDCs. Since I have done so, there is not switchport command under the interface configuration.
The interesting this is that it is available on the admin VDC, but not the new VDC I created. I cannot create a peer VPC Peer link between my 2 Nexus switches. I did allocate ports to the new VDC and I did verify the enabled feature are the same.
why the switchport command is not available?
Are any of the following commands supported on Nexus 5K switches when deployed with L3 card:
ip helper addressip forward-protocolip directed-broadcast
My 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
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when will be the command "default interface x/x" on the Nexus 5000 platform available? Even with latest software version (5.1.3.N2.1a) it is not possible. For Nexus7000 it's working fine with 5.2 train.Is there a feature request for it? If not here it is!!It's horrible to deconfigure many interfaces especially in N5k environments with many FEXes.
View 3 Replies View Relatedwhat is the equivalent command to configure on the Nexus 5596? OS version 5.1(3)N2(1) Catalyst 45k ip igmp snooping vlan 1036 mrouter interface Po20
View 1 Replies View RelatedWe have Nexus 7K recently installed few months back with 2 Sup (Slot 5 & Slot 6).Recently recevied mesaanges in monitoring servervia SNMP:Alarm : active unit removal caused an auto SWACT However, when checked there are no recent logs which may be linked to this alarm. The show redundancy command output shows that Sup in slot 5 is active which in slot 6 is Hot Standby.
View 1 Replies View Relatedtell me if there is an equivalent command to Show int Summary on the Nexus 7000?
eg
MYCISCOSW01#show int summary
*: interface is upIHQ: pkts in input hold queue IQD: pkts dropped from input queueOHQ: pkts in output hold queue OQD: pkts dropped from output queueRXBS: rx rate (bits/sec) RXPS: rx rate (pkts/sec)TXBS: tx rate (bits/sec) TXPS: tx rate (pkts/sec)TRTL: throttle count
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I find it a useful command on the 6500 to spot high traffic flows.
What is the exact command in restoring the running-config on a Nexus 7010. Is it the same command / procedure as the Cisco IOS?
View 3 Replies View RelatedI have configured the ip telnet source-interface Loopback 0 command on a Nexus7010, but when I telnet to another device and do a show users, the ip address is of the closest interface to the device I telnet to, not the ip address of the Loopback. All interfaces are in vrf default. I am running 5.1(6) NXOS.
View 6 Replies View Relateda link is added between Vail and Telluride in case if one of Aspen links fail to prevent AS 400 to become isolated. This link runs IBGP between both routers. Because this is an iBGP link, both routers will exchange BGP routes freely and automatically enters those routes into the routing table. Anyways, this link is advertised to OSPF through the BGP-to-OSPF redistribution. However, the book included that link in the OSPF configuration because as the book says "Without it, the iBGP session will not form" ... I did't get this part because the link is physical not logical between Vail and Telluride. Before the link was logical and the TCP session was performed through Aspen that's why we needed Aspen to know about this link. But now, it is physical so the iBGP (TCP) session should be formed without including that link in the OSPF config.
View 9 Replies View RelatedLooking to link up to 6513 chassis via 6704 10 gig cards.
I have a 6513 on the 8th floor and one on the 3rd floor in same building. Distance would be approx 150' max. New 10 gig cabling was installed between these floors.
I would like to use 2 10 gig ints on each 6704 to form a port channel (LACP) between the 2 environments.
So far I have been unable to get the links up between 6704's.
I config my E0/0 Interface with "ip ospf network non-broadcast" command, I want this interface to use uni cast to hello neighbor.
As I issue "neighbor x.x.x.x" under ospf process, it told me that: OSPF: Neighbor command is allowed only on NBMA and point-to-multipoint networks. I am sure that there are no any typo, and show ip ospf interface e0/0 says it's been an NBMA interface, so what's wrong with this router?
IOS information:
(C3620-J1S3-M), Version 12.3(18), RELEASE SOFTWARE (fc3)
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]
View 2 Replies View RelatedI 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
Struggle to find the SNMP MIBS of the Nexus 5000 FEX tranceivers.
View 3 Replies View Relatedthis is the first time I am about to configure ACS 5.3 to authorize user group from doing some commands in the "configure mode" while permitting them some other commands. As example, I want to deny them from doing "reload" but give them access to configure "time-range", what happen is, they are denied access to "reload" on the exec mode, but once they went into "configure" mode, they would be able to "do reload"I mean to say, is it possible to manage the subsequent commands to "configure terminal" ?
View 4 Replies View Relatedwe 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.
View 1 Replies View RelatedWe are setting up a test lab in our DMZ. The path to the internet is basically like this. Anything past the firewall is irrelevant. For this lab lets assume it is vlan 300.
LAB SW ---> DMZ-SW ---> ASA FW ---> INTERNET
LAB IP Range = 172.16.300.0 /24
GW = 172.16.300.1 (On FW int)
Trunked all the way through.
I have an int vlan set up on the LAB SW. It is being trunked to DMZ SW. DMZ trunks it to ASA FW where there is a failover with a redundant switch.On the ASA the interface 0/2 is a subinterface 0/2.300 being used as the default gateway.
I have DHCP running in a specific range on the LAB SW and do get an ip address when plugged in. I cannot ping the default gateway on the ASA FW.The GW is defined using default-router command for 172.16.300.1 i.e. default-router 172.16.300.1?
We are running ospf on the firewall. There appears to be a pattern with ospf and a similar subnet setup elsewhere. I was wondering based off of this info would configuring ospf for 172.16.300.0/24 allow me to ping the GW from a client on the LAB SW.Secondly. I trunked 300 on the DMZ SW but I didnt add the vlan to the configuration. i.e. conf t <enter> vlan 300 <enter> Does this really matter? Or is having the vlan in the configuration only pertain to access mode on interfaces?
I cannot receive any OSPF route from Nexus to ASR1002 even they are both OSPF neighbour. I have attached the config for both, Both Nexus and ASR part of Area0.
Config
ASR1002#sh ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface10.165.117.12 1 FULL/BDR 00:00:35 10.231.175.226 GigabitEthernet0/0/0
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