Cisco Nexus 5596T Switch question

when did the Cisco Nexus 5596T Switch hit the market?

I don't remember exactly, but it's been a while.
Looking at the release notes it shows support as of Cisco NX-OS Release 5.2(1)N1(1b) and looking at the software download page this was released as of 25-September 2012.
Regards

Similar Messages

Cisco Nexus 5548UP Switch Current Version 5.2(1)N1(4)

Hi, we're currently have Cisco Nexus 5548UP Switch Current Version 5.2(1)N1(4)
It's not listed as affected version:
Known Affected Releases:
(5)
5.2(1)N1(8a)
6.0(2)N2(5)
7.0(3)N1(0.125)
7.0(4)N1(1)
7.1(0)N1(0.349)
The Known Fixed Releases as follow:
Known Fixed Releases:
(7)
6.0(2)N2(4.3)
6.0(2)N2(5a)
7.0(1)ZN(0.615)
7.0(5)N1(0.173)
7.0(5)N1(1)
7.1(0)N1(0.371)
7.1(0)N1(1)
Do we need to update to the latest releases?
If yes, which version of the known fixed release is best suit our current version
Cisco Nexus 5548UP Switch Current Version 5.2(1)N1(4)
Thanks.

I had the same question, so I opened a TAC case to find the right software version. I was told that the software listed as available on the bug report were custom NX-OS builds and that there are no patched versions available for the 5548p. The support engineer also said that the Nexus 5k upgrades were not expected until November or December. The best advice I could get was to subscribe to the bug report and wait to be notified of an available upgrade.

FCoE with Cisco Nexus 5548 switches and VMware ESXi 4.1

Can someone share with me what needs to be setup on the Cisco Nexus side to work with VMware in the following scenario?
Two servers with two cards dual port FCoE cards with two ports connected to two Nexus 5548 switches that are clusterd together. We want to team the ports together on the VMware side using IP Hash so what should be done on the cisco side for this to work?
Thanks...

Andres,
The Cisco Road Map for the 5010 and 5020 doesn't include extending the current total (12) FEX capabities. The 5548 and 5596 will support more (16) per 55xxk, and with the 7K will support upto 32 FEX's.
Documentation has been spotty on this subject, because the term 5k indicates that all 5000 series switches will support extended FEX's which is not the case only the 55xx will support more than 12 FEX. Maybe in the future the terminology for the 5k series should be term 5000 series and 5500 series Nexus, there are several differences and advancements between the two series.

FCoE using Brocade cards CNA1020 and Cisco Nexus 5548 switches

All,
I have the following configuration and problem that I am not sure how to fix:
I have three Dell R910 servers with 1TB of memory and each has two brocade 1020 CNA cards dual port. I am using distributed switches for the VM network and a second distributed switch for VMotion. I have two of the 10G ports configured in each distributed switch using IP Hash. The management network is configured using a standard switch with two 1G ports.
The Nexus configuration is we have two nexus 5548 switch connected together with a trunk. We have two VPC's configured to each ESX hosts consisting of two 10gig ports in each VPC with one port going to each switch. The VPC is configured for static LAG.
What I am seeing is that after a few hours the virtual machines will not be accessible via network anymore. So if you ping the VM it will not work and if you get on the console of the VM then ping the gateway then nothing as well but if you try to ping another virtual machine on the same host on the same VLAN then it will work so traffic is going through the ESX backplane. If I reboot the ESX host then things will work again for another few hours or so then the problem repeats.
The version of vSphere I am using is ESXi4.1
Please assist I am stuck.
Thanks...

Here is the link for Nexus and Brocade interoperability Matrix
http://www.cisco.com/en/US/docs/switches/datacenter/mds9000/interoperability/matrix/Matrix7.html#wp313498
usually this table would show those models those have been tested and verified
However I do not see Brocade 5300 listed in the table . It could be, interoperability may have not been tested by both vendors perticularly to 5300 type Model.

Cisco 6504-E Switch question

Dear All,
TIll now I have worked with 2960-X series switches. I am new to 6500 Series switches. As we are upgrading the network. My company is looking for a switch which supports 16 SFP+ ports and 10 Gigabit speed per each Ethernet port. We are building a core switch and I was checking the Cisco models and found out that 6504-E switch is a good choice according to our requirements. But I have following questions. I request you to please answer it:
1. Cisco Catalyst 6504-E Switch is just a body and comes with 4 slots with no modules installed. Is that correct?
2. Cisco Catalyst 6504-E Switch need to be installed with "WS-X6908-10G-2TXL" Part number module for Fiber connectivity SFP+ uplink?
3. For 48 Port Gigabit Ethernet with POE support which module is supported? Each Gigabit ethernet port should support speed till 10 GBPS.
4. Does it support application visibility and Control?
5. Does it support routing between two separate VLANs without the need of Router?
6. Each module do we have separate console port or one module with Console port in enough in order to configure all the modules? Basically how does it work?
Please answer to my above queries. Thank you.

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#1 Yes, also you need to install power modules too.
#2 Need? Well it depends on your requirements. BTW, I believe 69xx cards require a sup2T.
#3 Actually I believe all 6500 PoE line cards are now end-of-life. Cisco now has IA switches that support PoE.
#4 Don't know. Is that a specific product?
#5 Yes.
#6 You manage the whole chassis with one console port. Most line card modules are directly configurable while managing the device. Some service modules require you to start an "internal" session to them, but you still only need the one console port. (Management can also be done across the network.)
BTW, 6500s are being phased out with the 6800 series. Unsure 6500 series offers SFP+ ports. I believe the 6880 does which is about the same size as a 6504 and offers more performance.
Depending on your needs, you might also want to look at the 4500 series. I recall (?) one of their later line cards support SFP+. The also still support PoE line cards.

Ask the Expert: Different Flavors and Design with vPC on Cisco Nexus 5000 Series Switches

Welcome to the Cisco® Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions about Cisco® NX-OS.
The biggest limitation to a classic port channel communication is that the port channel operates only between two devices. To overcome this limitation, Cisco NX-OS has a technology called virtual port channel (vPC). A pair of switches acting as a vPC peer endpoint looks like a single logical entity to port channel attached devices. The two devices that act as the logical port channel endpoint are actually two separate devices. This setup has the benefits of hardware redundancy combined with the benefits offered by a port channel, for example, loop management.
vPC technology is the main factor for success of Cisco Nexus® data center switches such as the Cisco Nexus 5000 Series, Nexus 7000 Series, and Nexus 2000 Series Switches.
This event is focused on discussing all possible types of vPC along-with best practices, failure scenarios, Cisco Technical Assistance Center (TAC) recommendations and troubleshooting
Vishal Mehta is a customer support engineer for the Cisco Data Center Server Virtualization Technical Assistance Center (TAC) team based in San Jose, California. He has been working in TAC for the past 3 years with a primary focus on data center technologies, such as the Cisco Nexus 5000 Series Switches, Cisco Unified Computing System™ (Cisco UCS®), Cisco Nexus 1000V Switch, and virtualization. He presented at Cisco Live in Orlando 2013 and will present at Cisco Live Milan 2014 (BRKCOM-3003, BRKDCT-3444, and LABDCT-2333). He holds a master’s degree from Rutgers University in electrical and computer engineering and has CCIE® certification (number 37139) in routing and switching, and service provider.
Nimit Pathak is a customer support engineer for the Cisco Data Center Server Virtualization TAC team based in San Jose, California, with primary focus on data center technologies, such as Cisco UCS, the Cisco Nexus 1000v Switch, and virtualization. Nimit holds a master's degree in electrical engineering from Bridgeport University, has CCNA® and CCNP® Nimit is also working on a Cisco data center CCIE® certification While also pursuing an MBA degree from Santa Clara University.
Remember to use the rating system to let Vishal and Nimit know if you have received an adequate response.
Because of the volume expected during this event, Vishal and Nimit might not be able to answer every question. Remember that you can continue the conversation in the Network Infrastructure Community, under the subcommunity LAN, Switching & Routing, shortly after the event. This event lasts through August 29, 2014. Visit this forum often to view responses to your questions and the questions of other Cisco Support Community members.

Hello Gustavo
Please see my responses to your questions:
Yes almost all routing protocols use Multicast to establish adjacencies. We are dealing with two different type of traffic –Control Plane and Data Plane.
Control Plane: To establish Routing adjacency, the first packet (hello) is punted to CPU. So in the case of triangle routed VPC topology as specified on the Operations Guide Link, multicast for routing adjacencies will work. The hellos packets will be exchanged across all 3 routers and adjacency will be formed over VPC links
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/operations/n5k_L3_w_vpc_5500platform.html#wp999181
Now for Data Plane we have two types of traffic – Unicast and Multicast.
The Unicast traffic will not have any forwarding issues, but because the Layer 3 ECMP and port channel run independent hash calculations there is a possibility that when the Layer 3 ECMP chooses N5k-1 as the Layer 3 next hop for a destination address while the port channel hashing chooses the physical link toward N5k-2. In this scenario,N5k-2 receives packets from R with the N5k-1 MAC as the destination MAC.
Sending traffic over the peer-link to the correct gateway is acceptable for data forwarding, but it is suboptimal because it makes traffic cross the peer link when the traffic could be routed directly.
For that topology, Multicast Traffic might have complete traffic loss due to the fact that when a PIM router is connected to Cisco Nexus 5500 Platform switches in a vPC topology, the PIM join messages are received only by one switch. The multicast data might be received by the other switch.
The Loop avoidance works little different across Nexus 5000 and Nexus 7000.
Similarity: For both products, loop avoidance is possible due to VSL bit
The VSL bit is set in the DBUS header internal to the Nexus.
It is not something that is set in the ethernet packet that can be identified. The VSL bit is set on the port asic for the port used for the vPC peer link, so if you have Nexus A and Nexus B configured for vPC and a packet leaves Nexus A towards Nexus B, Nexus B will set the VSL bit on the ingress port ASIC. This is not something that would traverse the peer link.
This mechanism is used for loop prevention within the chassis.
The idea being that if the port came in the peer link from the vPC peer, the system makes the assumption that the vPC peer would have forwarded this packet out the vPC-enabled port-channels towards the end device, so the egress vpc interface's port-asic will filter the packet on egress.
Differences: In Nexus 5000 when it has to do L3-to-L2 lookup for forwarding traffic, the VSL bit is cleared and so the traffic is not dropped as compared to Nexus 7000 and Nexus 3000.
It still does loop prevention but the L3-to-L2 lookup is different in Nexus 5000 and Nexus 7000.
For more details please see below presentation:
https://supportforums.cisco.com/sites/default/files/session_14-_nexus.pdf
DCI Scenario: If 2 pairs are of Nexus 5000 then separation of L3/L2 links is not needed.
But in most scenarios I have seen pair of Nexus 5000 with pair of Nexus 7000 over DCI or 2 pairs of Nexus 7000 over DCI. If Nexus 7000 are used then L3 and L2 links are required for sure as mentioned on above presentation link.
Let us know if you have further questions.
Thanks,
Vishal

Cisco LAN Management Solution is required to support Cisco Nexus 5548P and 5596UP switches?

Hi,
Could someone help to know what Cisco LAN Management Solution is required to support Cisco Nexus 5548P switches and Cisco Nexus 5596UP switches?
These new Cisco switches are being implementing on customer network and he ask us that he requires these equipments be supported on a LMS solution (customer currently is using LMS 3.2.1)
Can someone help?
Thanks in advanced,
guruiz

Some very limited Nexus support is present in LMS 3.2.1 - see the supported device table here.
To get more complete support, including the 5596UP, they need to upgrade to LMS 4.x (e.g. LMS 4.2.2 is the latest and is sold under the Cisco Prime Infrastructure 1.2 umbrella). The major upgrade from 3.x to 4.x requires purchasing an upgrade license.
Some functions (namely User Tracking ) will not be available on the 5k due to non-support of the requisite MIB on the device. I believe LMS still doesn't let you do VLAN management on 5k's - you need to use DCNM for that if you want to do it from a GUI.
See the table here for LMS 4.2 device support.

Enabling ECN marking on Cisco nexus 3064

Hi,
I have a requirement to enable ECN marking on CIsco nexus 3064 switch. ECT(0) traffic is being switched.
Tried the below configs, But not quite helping.
==================================
n# sh policy-map type network-qos nq_pm_1
Type network-qos policy-maps
===============================
policy-map type network-qos nq_pm_1
    class type network-qos nq_cm_1
      mtu 1500
      congestion-control random-detect ecn
    class type network-qos class-default
      mtu 1500
     congestion-control random-detect ecn
n# sh run | beg "system qos"
system qos
service-policy type qos input iscsi
service-policy type network-qos nq_pm_1
n# sh policy-map type queuing pqu
Type queuing policy-maps
========================
policy-map type queuing pqu
    class type queuing cqu
      random-detect minimum-threshold 10 packets maximum-threshold 350 packets
      bandwidth percent 50
    class type queuing class-default
      bandwidth percent 50
      random-detect minimum-threshold 5 packets maximum-threshold 5 packets
n# sh run int e1/21
!Command: show running-config interface Ethernet1/21
!Time: Tue Apr 29 09:04:35 2014
version 5.0(3)U5(1b)
interface Ethernet1/21
no switchport
service-policy type queuing output pqu
ip address 15.0.20.1/24
what could possibly be missing?
Thanks
Jose.

Duplicate post.
Go here: http://supportforums.cisco.com/discussion/12190426/ecn-marking-cisco-nexus-3064

CISCO NEXUS 5020 Not Booting

I have a cisco nexus 5020 switch of 2 nos, but when i try to boot the device its result no image on the flash and it stuck in the boot mode. Is any possibility to boot the nexus from boot mode without having a image from flash.

Hi Michael,
If the unit is not showing anything at all when connecting screen/keyboards, there won't be much more investigation possible. Likely the HW has gone bad and you will have to replace it.
Regards,
Marco

Cisco Nexus 5548UP to Brocade SAN Connectivity

Hi,
I have a Server-SAN-Storage setup as shown in the attachment/below. There are new Cisco UCS rack mount servers with VIC 1225 and Virtual servers on VMware Esxi hypevisor connected to a new Cisco Nexus 5548UP switch in IP+FCoE mode. The new 5548 switch then connects to an existing production SAN of Brocade 48000 Director SAN switch which connects to storage in production environment.
I need to know the best way to connect the 5548 switch to the Brocade SAN switch without disrupting the existing Production SAN environment i.e. Brocade SAN switch configurations & setup e.g. Fabric Principal switch. priority etc.
Would configuring the 5548 switch in NPV mode be best practice?

See Figure 6-2 Converged Multi-hop FCoE Network Design Using FCoE NPV
http://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/operations/fcoe/513_n1_1/ops_fcoe/ops_fcoe_npv.html
You have to use NPV on N5k, there is no FC interop support on N5k, to connect to Brocade.

Cisco Nexus 5548UP

Hi
I need a switch that supports FC, FCoE and iSCSI traffic. The switch that has been suggested to us is Cisco Nexus 5548UP.
I have the following queries regarding this switch:
1)       At our end, I have AMS 2100 Hitachi Storage which has iSCSI & FC Ports. I also have Qlogic CNA card at the server end which supports both ISCSI & FCOE. For FCoE protocol based traffic, the storage to switch connection will have to be FC and the switch to server connection will be FCoE. Can you please confirm whether, if this will be possible through the proposed Cisco Nexus 5548UP switch?
2)       The specification for the Nexus 5548UP switch claims that it supports 10 Gigabit Ethernet. Can you please confirm if this relates to iSCSI support that the switch provides?
3)       We are going to use -SFP-FC4G-SW & SFP-10G-SR SFP for fiber connectivity. Can you please let us know the what these SFP are used for and whether they assist in FC and FCoE traffic forwarding?
4)       We are also going to use Nexus 5500 Storage License, 8 Ports. Does this indicate that only 8 ports of the switch can be connected to the storage? Among these ports, can we configure 4 ports for FC and 4 ports for iSCSI (keeping in mind that our storage has both FC and iSCSI ports)?
5)       Is there any License required for enable FC, FCoE and iSCSI protocols?
An early resolution of these queries will enable us to make a decision regarding the switch.
Thanks
Bhanudas Mali

The specification for the Nexus 5548UP switch claims that it supports 10 Gigabit Ethernet. Can you please confirm if this relates to iSCSI support that the switch provides?
The "UP" in the Nexus 5548 stands for Universal Port. This means that each port can support FC, FCoE and Ethernet. So, a 5548 has 32 ports of SFP/SFP+. Each port can support and push 10 Gbps at a 1:1 oversubscription rate.
There is an optional 16-port SFP/SFP+ module, N55-M16UP, which will add an additional 16 Universal Ports.
Because they are "universal" they can support 1/10 Gbps FCoE and Ethernet as well as 1, 2, 4 and 8 Gbps FC.

Ask the Expert: Cisco Nexus 2000, 5000, and 6000 Series Switches

with Cisco Expert Vinayak Sudame
Welcome to the Cisco Support Community Ask the Expert conversation. This is an opportunity to learn and ask questions how to configure and troubleshoot the Cisco Nexus 2000, 5000 and 6000 Series Switches with Cisco subject matter expert Vinayak Sudame. You can ask any question on configuration, troubleshooting, features, design and Fiber Channel over Ethernet (FCoE).
Vinayak Sudame is a Technical Lead in Data Center Switching Support Team within Cisco's Technical Services in RTP, North Carolina. His current responsibilities include but are not limited to Troubleshooting Technical support problems and Escalations in the areas of Nexus 5000, Nexus 2000, FCoE. Vinayak is also involved in developing technical content for Cisco Internal as well as external. eg, Nexus 5000 Troubleshooting Guide (CCO), Nexus 5000 portal (partners), etc. This involves cross team collaboration and working with multiple different teams within Cisco. Vinayak has also contributed to training account teams and partners in CAE (Customer Assurance Engineering) bootcamp dealing with Nexus 5000 technologies. In the past, Vinayak's responsibilities included supporting MDS platform (Fiber Channel Technologies) and work with EMC support on Escalated MDS cases. Vinayak was the Subject Matter Expert for Santap Technologies before moving to Nexus 5000 support. Vinayak holds a Masters in Electrical Engineering with Specialization in Networking from Wichita State University, Kansas. He also holds Cisco Certification CCIE (#20672) in Routing and Switching.
Remember to use the rating system to let Vinayak know if you have received an adequate response.
Vinayak might not be able to answer each question due to the volume expected during this event. Remember that you can continue the conversation on the Data Center sub-community, Other Data Center Topics discussion forum shortly after the event.
This event last through Friday July 12, 2013. Visit the community often to view responses to youe questions of other community members.

Hi Vinayak,
Output of "show cfs internal ethernet-peer database"
Switch 1
ETH Fabric
Switch WWN logical-if_index
20:00:54:7f:ee:b7:c2:80 [Local]
20:00:54:7f:ee:b6:3f:80 16000005
Total number of entries = 2
Switch 2
ETH Fabric
Switch WWN logical-if_index
20:00:54:7f:ee:b6:3f:80 [Local]
20:00:54:7f:ee:b7:c2:80 16000005
Total number of entries = 2
Output of "show system internal csm info trace"
Switch 1 in which "show cfs peers" show proper output
Mon Jul 1 05:46:19.145339 (CSM_T) csm_sp_buf_cmd_tbl_expand_range(8604): No range command in buf_cmd_tbl.
Mon Jul 1 05:46:19.145280 (CSM_T) csm_set_sync_status(6257): Peer RT status PSSed
Mon Jul 1 05:46:19.145188 (CSM_T) csm_sp_handle_local_verify_commit(4291):
Mon Jul 1 05:46:19.145131 csm_continue_verify_ac[597]: peer is not reachable over CFS so continuing with local verify/commit
Mon Jul 1 05:46:19.145071 csm_tl_lock(766): Peer information not found for IP address: '172.16.1.54'
Mon Jul 1 05:46:19.145011 csm_tl_lock(737):
Mon Jul 1 05:46:19.144955 (CSM_EV) csm_sp_build_tl_lock_req_n_send(941): sending lock-request for CONF_SYNC_TL_SESSION_TYPE_VERIFY subtype 0 to Peer ip = (172.16.1.54)
Mon Jul 1 05:46:19.143819 (CSM_T) csm_copy_image_and_internal_versions(788): sw_img_ver: 5.2(1)N1(2a), int_rev: 1
Mon Jul 1 05:46:19.143761 (CSM_T) csm_sp_get_peer_sync_rev(329): found the peer with address=172.16.1.54 and sync_rev=78
Mon Jul 1 05:46:19.143699 (CSM_T) csm_sp_get_peer_sync_rev(315):
Mon Jul 1 05:46:19.143641 (CSM_EV) csm_sp_build_tl_lock_req_n_send(838): Entered fn
Mon Jul 1 05:46:19.143582 (CSM_T) csm_set_sync_status(6257): Peer RT status PSSed
Switch 2 in which "show cfs peers" does not show proper output
Mon Jul 1 06:13:11.885354 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd switchport mode trunk, cmd pseq 77 seq 482
Mon Jul 1 06:13:11.884992 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd channel-group 51 mode active, cmd pseq 357 seq 369
Mon Jul 1 06:13:11.884932 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd switchport trunk allowed vlan 2, 11, cmd pseq 357 seq 368
Mon Jul 1 06:13:11.884872 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd switchport mode trunk, cmd pseq 357 seq 367
Mon Jul 1 06:13:11.884811 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd description process_vpc, cmd pseq 357 seq 366
Mon Jul 1 06:13:11.884750 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd channel-group 51 mode active, cmd pseq 352 seq 365
Mon Jul 1 06:13:11.884690 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd switchport trunk allowed vlan 2, 11, cmd pseq 352 seq 364
Mon Jul 1 06:13:11.884630 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd switchport mode trunk, cmd pseq 352 seq 363
Mon Jul 1 06:13:11.884568 (CSM_ERR) csm_pss_cmd_tree_walk_cb(2057): Parent command not found for cmd description process_vpc, cmd pseq 352 seq 362
Mon Jul 1 06:13:11.884207 (CSM_EV) csm_sp_acfg_gen_handler(3011): Preparing config into /tmp/csm_sp_acfg_1733916569.txt
Mon Jul 1 06:13:11.878695 csm_get_locked_ssn_ctxt[539]: Lock not yet taken.
Mon Jul 1 06:13:11.878638 (CSM_EV) csm_sp_acfg_gen_handler(2937): Recieved sp acfg merge request for type: running cfg
Mon Jul 1 06:12:29.527840 (CSM_T) csm_pss_del_seq_tbl(1989): Freeing seq tbl data
Mon Jul 1 06:12:29.513255 (CSM_T) csm_sp_acfg_gen_handler(3106): Done acfg file write
Mon Jul 1 06:12:29.513179 (CSM_EV) csm_sp_acfg_gen_handler(3011): Preparing config into /tmp/csm_sp_acfg_1733911262.txt
Mon Jul 1 06:12:29.508859 csm_get_locked_ssn_ctxt[539]: Lock not yet taken.
Mon Jul 1 06:12:29.508803 (CSM_EV) csm_sp_acfg_gen_handler(2937): Recieved sp acfg merge request for type: running cfg
Mon Jul 1 05:53:17.651236 Collecting peer info
Mon Jul 1 05:53:17.651181 Failed to get the argumentvalue for 'ip-address'
Mon Jul 1 05:40:59.262736 DB Unlocked Successfully
Mon Jul 1 05:40:59.262654 Unlocking DB, Lock Owner Details:Client:1 ID:1
Mon Jul 1 05:40:59.262570 (CSM_T) csm_sp_del_buf_cmd(1713): Deleting comand with Id = 1
Mon Jul 1 05:40:59.262513 DB Lock Successful by Client:1 ID:1
Mon Jul 1 05:40:59.262435 Recieved lock request by Client:1 ID:1
Mon Jul 1 05:40:41.741224 ssnmgr_ssn_handle_create_get: Session FSM already present, ID:1
Mon Jul 1 05:40:41.741167 ssnmgr_handle_mgmt_request: Create/Get request received for session[process_n5kprof]
show cfs lock gives no output.
Just to further clarify, we have 4 5548UP switches in the same management vlan. 2 switches are in one location lets say location A and they are CFS peers and are working fine.
These two switches which are having problem are in location B. All the switches are in the same vlan. Essentially the all CFS multicast messages will be seen by all 5548 switches as they are in the same vlan. I am assuming that this might not create any problems as we specify the peers in the respective configurations. Or do we have to change the CFSoIPv4 multicast addresses in location B or may be configure a different region.
Regards.

Cisco Nexus 1000v Virtual Switch for Hyper-V Availability

Hi,
Does anyone have any information on the availability of the Cisco Nexus 1000v virtual switch for Hyper-V. Is it available to download from Cisco yet? If not when will it be released? Are there any Beta programs etc?
I can download the 1000v for VmWare but cannot find any downloads for the Hyper-V version.
Microsoft Partner

Any updates on the Cisco Nexus 1000v virtual switch for Hyper-V? Just checked on the Cisco site, however still only the download for VMware and no trace of any beta version. Also posted the same question at:
http://blogs.technet.com/b/schadinio/archive/2012/06/09/windows-server-2012-hyper-v-extensible-switch-cisco-nexus-1000v.aspx
"Hyper-V support isn't out yet. We are looking at a beta for Hyper-V starting at the end of February or the begining of March. "
-Ian @ Cisco Community
|| MCITP: EA, VA, EMA, Lync SA, makes a killer sandwich. ||

Nexus 2K to Cisco 2960 IOS Switch

Hi,
I am trying to connect Nexus 2K FEX to Cisco 2960 IOS Switch (Trunk config) and causing spanning tree loop having issues. I am aware that I should't be connecting non host port to 2K FEX but it's corner case. I have done similar setup with Access Port configuration and didn't faced any issues.
Nexus 5K config Config
interface Ethernet107/1/47
switchport mode trunk
switchport trunk allowed vlan 500-501
spanning-tree guard root
spanning-tree bpdufilter enable
interface Ethernet108/1/47
switchport mode trunk
switchport trunk allowed vlan 500-501
spanning-tree guard root
spanning-tree bpdufilter enable
2960-Config
interface GigabitEthernet1/0/47
switchport mode trunk
switchport trunk allowed vlan 500-501
spanning-tree bpdufilter enable
interface GigabitEthernet1/0/48
switchport mode trunk
switchport trunk allowed vlan 500-501
spanning-tree bpdufilter enable
Error Log
%FWM-2-STM_LOOP_DETECT: Loops detected in the network for mac 001b.1700.0130 among ports Eth107/1/47
Eth108/1/47 vlan 500 - Disabling dynamic learn notifications for 180 seconds
Should I configure port as "spanning-tree port type network" and create VPC and "storm-control broadcast level" to stop future occurrence? OR Do i have to configure anything else to prevent spanning-tree loops?
Thanks for your help
Ritesh

Hi,
spanning-tree port type network is used for VPC peer-link. Try creating a new VPC and add ports 107/1/47 and 108/1/47 to it and a Portchannel on the 2960 and test.
HTH

Quick easy question about cisco 2948 l3 switches..

Hi Everyone,
I was wondering is there a battery backup in the cisco 2948 L3 switches. I have googled for this and checked the manuals and i cannot find anything. I only ask this because everytime one of our two 2948's are rebooted they lose their configs and have to be manually reconfigured. So I am hoping it is a battery problem rather then the NV ram has gone bad (if that is possible)
Thanks,
Adam

Nope, no battery. If the behavior is consistent every reboot, you might have a defective NVRAM, this is assuming you are saving the config, this is a 2948G-L3, so it must be saved, if it's a 2948G, then it's a switch and running CatOS and therefore any configuration changes gets saved in the NVRAM as soon as you press the enter key after a "set" commmand.
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