Catalyst 2960 SF Stacking

Hi
I am stacking 6 Catalyst 2960 SF Series PoE 48 ports, I am using the Bladestack cable. I plug it in from 1 to 2 on all the switches. If I look at the lights it shows 4 in on group and 2 in another. If I do a show switch detail it shows the following
Switch/Stack Mac Address : 44ad.d982.a100
                                           H/W   Current
Switch# Role   Mac Address     Priority Version State
1       Member 5006.0425.7e00     1      1       Ready
*2       Master 44ad.d982.a100     1      1       Ready
3       Member 5006.0435.bc00     1      1       Waiting
4       Member 5006.04d8.7000     1      1       Ready
         Stack Port Status             Neighbors
Switch# Port 1     Port 2           Port 1   Port 2
1       Down        Ok              None       2
2        Ok         Ok                4        1
4       Down        Ok              None       2

Hi , i think only four 2960 SF switches can be stacked into a singe logical switch.
Please refer the link , hope this helps:
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/white_paper_c11-578928.html

Similar Messages

Catalyst 2960S switch stack support?

I have a customer with a new stack of four Catalyst 2960S switches.
Is this configuration supported by Onplus?
I can't seem to figure out the login access and enable access credentials
so that Onplus can backup the configuration of the stack.
Jeff Bright
Bright Systems
Broken Arrow, OK

I also have a 2960S stack in my office. I checked my handy OnPlus iPhone App and it shows backup, restore, and firmware all equal 1 which I recall correctly means backup is supported. I'll double check when I get into the office to ensure backups are actually working.
Sent from Cisco Technical Support iPhone App

Catalyst 2960-S Stack Interface Packet Drop

Hi all!
I have a 2960-S stack with the following behavior:
SWITCH#sh int g1/0/26
     Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 12275
When I issue the show mls qos interface g1/0/26 statistics:
SWITCH#show mls qos interface g1/0/26 statistics
GigabitEthernet1/0/26 (All statistics are in packets)
dscp: incoming
0 - 4 :    35356866        0            0            0            0
5 - 9 :            0            0            0            2            0
10 - 14 :           0            0            0            0            0
15 - 19 :           0            0            0            0            0
20 - 24 :           0            0            0            0            0
25 - 29 :           0            0            0            0            0
30 - 34 :           0            0            0            0            0
35 - 39 :           0            0            0            0            0
40 - 44 :      634354        0            0            0            0
45 - 49 :           0     49446819      0            0            0
50 - 54 :           0            0            0            0            0
55 - 59 :           0            0            0            0            0
60 - 64 :           0            0            0            0
dscp: outgoing
0 - 4 :     6835883         0            0            0            0
5 - 9 :            0             0            0     43973612      0
10 - 14 :           0            0            0            0            0
15 - 19 :           0            1            0            0            0
20 - 24 :           0            0            0            0       204586
25 - 29 :           0            0            0            0            0
30 - 34 :           0            0            0            0            0
35 - 39 :           0            0            0            0            0
40 - 44 :           2            0            0            0            0
45 - 49 :           0      2215325       0           55            0
50 - 54 :           0            0            0            0            0
55 - 59 :           0        29668         0            0            0
60 - 64 :           0            0            0            0
cos: incoming
0 - 4 :    35374153            2            0            0            0
5 - 7 :    50121685            0            0
cos: outgoing
0 - 4 :    12975602     43973617        85081       204622          122
5 - 7 :    47659950          105     34377016
output queues enqueued:
queue:    threshold1   threshold2   threshold3
queue 0:           0           0    47659935
queue 1:       92482     1222278    34432039
queue 2:           0           0    13178400
queue 3:           0           0    43982889
output queues dropped:
queue:    threshold1   threshold2   threshold3
queue 0:           0           0          71
queue 1:           0        1738           0
queue 2:           0           0          20
queue 3:           0           0      375553
Policer: Inprofile:            0 OutofProfile:            0
I need some help to read this output but it seems that packets are dropped at all queues, isn't it?
Any help please?
Thanks in advance!

Please post the output to the following commands:
1. sh interface G1/0/26; and
2. sh controll e G1/0/26
What kind of client is connected to port Gi1/0/26?

Catalyst 2960 vs 3750

Long time reader here but first time poster. I am looking into upgrading our network switches soon and I'm trying to decide on a design now. Let me give some background information on the network.
Currently we have a Catalyst 5513 with a Supervisor II, ten 24 port 10/100 cards and a 12 port fiber card installed. There are also two 48 port Alcatel switches that are uplinked to the 5500 as well as six Catalyst 2900XLs (on the factory floor) uplinked to it via fiber. There are about 40 servers and 350clients in total in the building. All servers and most of the clients in the office are connected directly to the 5513. We will be consolidating buildings soon and plan on adding another 200 devices to the network (office and factory floor area).
I was thinking we should get two Catalyst 3750G-48TS and a 3750G-12S in a stack for the core switch. Then use Catalyst 2960-48TC-L switches uplinked to the 3570 stack for the access layer. Does this make more sense than directly connecting all the clients and servers directly to the 3570 stack? What would be the advantages/disadvantages of each setup besides cost?
Thanks for any help you can provide!

I tend to go with a more modular approach and hang nothing off my core except otehr switches. Put your servers on their own switches as well. There are a few reason i do it this way.
The first is I run two cores for redunacy. by giving servers their own access layer switch, i can isolate them from a core failure.
Second, ports on a core switch tend to be more expensive. I know I'm going to be adding servers in the next few years. Its cheaper for me to buy more 3560's then more blades for a 6500.
Third, modularity. I can make more changes to either the core, or edge switches and not effect the other. Say you find out down the road, that the 3750 stack isnt quite moving the number of packets you need. If you plug end users and servers into your core now, just picture how much of a bear it will be to replace the core. Always try to go the route that will give you maximum flexibility and growth.

Catalyst 2960-x Tel 1 and g49, bug

Hi Cisco Community
I am experiencing a very strang bug or it's just a "feature". We are setting up 3 Catalyst 2960-x (EX5) as a stack. Te 1/0/1 and Te 2/0/1 are bundled as Etherchannel. (works fine "In-channel-group")
But we just can not connect anything else to Te 1/0/2 or Te 2/0/2.
When i checked the "sh run" i noticed that there are the Ports g49 and g50. What should be Te 1 and Te 2.
interface GigabitEthernet1/0/49
switchport access vlan 901
switchport trunk native vlan 901
interface GigabitEthernet1/0/50
switchport trunk allowed vlan 1,10,20,30,40,50,761,901
interface TenGigabitEthernet1/0/1
description Ecosw2-1:Te1
switchport trunk allowed vlan 1,10,20,30,40,50,761,901
switchport mode trunk
srr-queue bandwidth share 1 30 35 5
priority-queue out
mls qos trust cos
macro description cisco-switch
auto qos trust
spanning-tree link-type point-to-point
spanning-tree vlan 1,10,20,30,40,50,60,761,901 port-priority 64
channel-group 1 mode active
interface TenGigabitEthernet1/0/2
description Ecovm05:1
switchport access vlan 901
switchport trunk native vlan 901
Connecting my Blade to Te 1/0/2 or g50 just will not bring up any link.
Can somebody help me out here?
Best regards

Hello Ajay,
This is hardware failure. Please replace it.
Another useful post i found
https://supportforums.cisco.com/discussion/12251826/brom-boot-2960xr-switch
Hope this helps
******Please rate useful posts******
Thanks,
Madhu

Mib to catalyst 2960

Hi,
I want to copy (install) mibs to a cisco catalyst 2960 switch.
I don't know how can I do that.
I want this tables read: vlanTable,dot1dTpFdbTable,dot1dBasePortTable,ifXTable
I need install this two mibs: BRIDGE-MIB, CISCO-STACK-MIB
I know the cisco switch haves a mibs load order, but I dont know how can install a mib to a switch.
Sorry for my english.
Thx.

/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Normál táblázat";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";
mso-ansi-language:#0400;
mso-fareast-language:#0400;
mso-bidi-language:#0400;}
Thx for the replay, then I must find a way to install Cisco mibs an OpenSUSE box.

SNMP, Query dot1dStpPortState on Catalyst 2960-S

Hi Community,
I would like to be able to query the dot1dStpPortState obect on the Catalyst 2960-S on our LAN . Im running firmware
c2960s-universalk9-mz.122-55.SE2.bin and according to the Cisco SNMP Object Navigator the object is supported (via the BRIDGE-MIB).
However when i query using snmpwalk from my workstation :
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I recieve and error .
SNMPv2-SMI::mib-2.17.2.15.1.3 = No Such Instance currently exists at this OID
For the sake of comparison, querying our 4700 :
snmpwalk -v 2c -c bic-zua-ro 10.u.y.x 1.3.6.1.2.1.17.2.15.1.3
returns (as expected, cropped)
SNMPv2-SMI::mib-2.17.2.15.1.3.1 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.3 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.40 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.67 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.104 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.257 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.258 = INTEGER: 5
SNMPv2-SMI::mib-2.17.2.15.1.3.259 = INTEGER: 5
Is there some special configuration i need to do on our 2960's. The only snmp related settings i can see in the running config is snmp-server community. In this case :
snmp-server community bic-zua-ro RO
Thanks in advance for any comments/ assistance.
Rgds
Ian

Hi Vinod,
Wow, thanks for your prompt reply. Output from filtered running config pasted below
TVS-Stack17#sh run | inclu snmp
snmp-server community bic-zua-ro RO
Interestingly when i walk the entire dot1dBridge (1.3.6.1.2.1.17) i recieve lots of data from both dot1dBase (1) and dot1dTp (4) but nothing from dot1dStp (2)
I tried portAdditionalOperStatus and did not recieve any response but got lots of data from its patent portEntry (1)
Running show spann on the 2960 stack i can see various ports in forwarding and blocking start as i would expect.
Rgds,
Ian

2960-X stacking, 5 switches with interwoven 0.5 M cables

I am trying to understand how to connect 5 switches using 0.5 M cables only. I have read this "best practices" document, but it leaves some unanswered questions.
http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-2960-x-series-switches/white_paper_c11-728327.pdf
I would normally just daisy chain the switches and bring a connection from the bottom switch back up to the top to create a "ring" topology. But the documentation also states that switches can be connected with "interweaved cables". It makes no statement as to what if any performance considerations should be taken into account when designing stack interconnections, or whether this interwoven topology creates any operational complications. The only requirements that I have seen is that each switch must have 2 operational FlexStack links in order to be fully redundant and to fully utilize all available bandwidth. Does anyone have any guidance in this area?
Assuming no negative consequences by using the "interwoven" topology, does this make sense?
Thanks,
-Jeff

Well it probably wouldn't be confusing if I could find a clear set of ground rules. The documentation mentions "FlexStack protocol", but the discussions seem to indicate that this is a control plane protocol. Do the stacking modules operate as ethernet bridges when making forwarding decisions like any other switch port? If the answer is yes then at least I understand the principal of operation. But now if you throw multi-chassis etherchannel uplinks into the mix divining general layer 2 paths becomes a little murky.
Although now that I look at it, using this cabling has an advantage over a straight ring topology. Once a frame hits the stack it is never more than 2 hops away from it's destination. With daisy-chained switches it could be up to 4 hops. This is of course assuming standard 802.1d-like forwarding. This may be an invalid assumption. I don't see any way to get spanning tree info for the stack ports.
(EDIT: standard ring topology would also have a maximum of 2 hops to any switch, not 4)

Adding 2960-X to 2960-S Stack

i purchased a new 2960-X switch
i would like to add it to an existing 2 switch 2960-s stack
i understand i need to downgrade the stack speed on the 2960-x with :
switch stack port-speed 10
do the IOS version need to be identical on all switches?
i have:
2960-s = 12.2(55)SE3
2960-x = 15.0(2)EX3
if they do need to be identical, whats the best way to do this?
thanks

Yes, use this command with a .tar file to upgrade all switches in the stack.
Here is an example of using the `archive download-sw` command to upgrade a stack of Cisco Catalyst 2960-S switches. Notice that the number of members in the stack is not relevant to this command. By default all members are upgraded unless the network admin uses the options to do otherwise. The TFTP IP address is 192.168.1.1, and the tar file name is c2960s-universalk9-tar.122.53.SE.tar
Switch# archive download-sw tftp://192.168.1.1/c2960s-universalk9-tar.122.53.SE.tar
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps6406/white_paper_c11-578928.html
HTH

4500-x vss MEC to 2960-x stack

Building A
(2) 4500-x VSS
(9) closets with 2960-x stacks
(2) Data Center N5K-C5596t
I'm having a difficult time trying to find documentation.
I have the (2) 4500-x configured with VSS and am trying to find info on connecting the 2960-x stacks.

Hi,
some info.
PAgP is supported in all platforms except the Cisco Catalyst 37xx stack configuration in which cross-stack EtherChannel (LACP) is required to have MEC-connectivity with the VSS. Because cross-stack EtherChannel does not support PAgP, it cannot use enhanced PAgP for dual-active detection. A common approach to resolve this gap in support is to use two EtherChannel links from the same stack member. This solution is a non-optimal design choice because it creates a single point-of-failure. If a stack member containing that EtherChannel fails, the whole connectivity from the stack fails. To resolve this single point-of-failure problem, you can put two dual-link EtherChannel group, each on separate stack member connected to VSS; however, it will create a looped topology. The loop-free topology requires a single EtherChannel bundle to be diversified over multiple members which in turn requires LACP.

Catalyst 2960S-LPS-L PoE only on specific ports not working

Hi,
we have Catalyst 2960S-LPS-L (48 Ports) here which in general works fine.
If i connect a Cisco Access Point (2602), it´s powered up via PoE, but on some ports this is not working; it just doesn´t power up. The port configuration is exactly the same. I rebooted the switch, but still the same.
Any ideas how to troubleshoot this? Is it possible, that the PoE capability on some ports is just broken?
Thanks
Heinz

Hi,
it did all this, but there are no irregularities. IOS is version 152-1.E2
#sho post
Stored system POST messages:
Switch 1
POST: MA BIST : Begin
FC 1 MBIST Test Passed.
DP Sg1 MBIST Test Passed.
DP Xg1 MBIST Test Passed.
NI 1 MBIST Test Passed.
FC 0 MBIST Test Passed.
DP Sg0 MBIST Test Passed.
DP Xg0 MBIST Test Passed.
NI 0 MBIST Test Passed.
UPB MBIST Test Passed.
POST: MA BIST : End, Status Passed
POST: TCAM BIST : Begin
POST: TCAM BIST : End, Status Passed
POST: Inline Power Controller Tests : Begin
POST: Inline Power Controller Tests : End, Status Passed
POST: Thermal, Fan Tests : Begin
POST: Thermal, Fan Tests : End, Status Passed
POST: PortASIC Stack Port Loopback Tests : Begin
POST: PortASIC Stack Port Loopback Tests : End, Status Passed
POST: PortASIC Port Loopback Tests : Begin
POST: PortASIC Port Loopback Tests : End, Status Passed
POST: EMAC Loopback Tests : Begin
POST: EMAC Loopback Tests : End, Status Passed
#sho power inline
fti-mco01-ssw01#sho power inline
Module Available Used Remaining
(Watts) (Watts) (Watts)
1 370.0 84.7 285.3
2 370.0 56.7 313.3
3 370.0 169.4 200.6
Interface Admin Oper Power Device Class Max
(Watts)
Gi1/0/1 auto on 6.3 IP Phone 7940 n/a 30.0
Gi1/0/2 auto off 0.0 n/a n/a 30.0
Gi1/0/3 auto off 0.0 n/a n/a 30.0
Gi1/0/4 auto off 0.0 n/a n/a 30.0
Gi1/0/5 auto off 0.0 n/a n/a 30.0
Gi1/0/6 auto off 0.0 n/a n/a 30.0
Gi1/0/7 auto off 0.0 n/a n/a 30.0
Gi1/0/8 auto off 0.0 n/a n/a 30.0
Gi1/0/9 auto off 0.0 n/a n/a 30.0
Gi1/0/10 auto on 6.3 IP Phone 7912 n/a 30.0
Gi1/0/11 auto off 0.0 n/a n/a 30.0
Gi1/0/12 auto off 0.0 n/a n/a 30.0
Gi1/0/13 auto on 6.3 IP Phone 7940 n/a 30.0
Gi1/0/14 auto off 0.0 n/a n/a 30.0
Gi1/0/15 auto off 0.0 n/a n/a 30.0
Gi1/0/16 auto off 0.0 n/a n/a 30.0
Gi1/0/17 auto off 0.0 n/a n/a 30.0
Gi1/0/18 auto on 6.3 IP Phone 7940 n/a 30.0
Gi1/0/19 auto off 0.0 n/a n/a 30.0
Gi1/0/20 auto on 6.3 IP Phone 7940 n/a 30.0
Gi1/0/21 auto on 6.3 IP Phone 7940 n/a 30.0
Gi1/0/22 auto off 0.0 n/a n/a 30.0
Gi1/0/23 auto on 6.3 IP Phone 7960 n/a 30.0
Gi1/0/24 auto off 0.0 n/a n/a 30.0
Gi1/0/25 auto on 6.3 IP Phone 7940 n/a 30.0
Gi1/0/26 auto off 0.0 n/a n/a 30.0
Gi1/0/27 auto off 0.0 n/a n/a 30.0
Gi1/0/28 auto off 0.0 n/a n/a 30.0
Gi1/0/29 auto off 0.0 n/a n/a 30.0
Gi1/0/30 auto off 0.0 n/a n/a 30.0
Gi1/0/31 auto off 0.0 n/a n/a 30.0
Gi1/0/32 auto off 0.0 n/a n/a 30.0
Gi1/0/33 auto off 0.0 n/a n/a 30.0
Gi1/0/34 auto off 0.0 n/a n/a 30.0
Gi1/0/35 auto on 6.3 IP Phone 7960 n/a 30.0
Gi1/0/36 auto off 0.0 n/a n/a 30.0
Gi1/0/37 auto on 6.3 IP Phone 7960 n/a 30.0
Gi1/0/38 auto on 15.4 AIR-SAP2602I-E-K9 3 30.0
Gi1/0/39 auto off 0.0 n/a n/a 30.0
Gi1/0/40 auto off 0.0 n/a n/a 30.0
Gi1/0/41 auto off 0.0 n/a n/a 30.0
Gi1/0/42 auto on 6.3 IP Phone 7912 n/a 30.0
Gi1/0/43 auto off 0.0 n/a n/a 30.0
Gi1/0/44 auto off 0.0 n/a n/a 30.0
Gi1/0/45 auto off 0.0 n/a n/a 30.0
Gi1/0/46 auto off 0.0 n/a n/a 30.0
Port G1/0/44 is not delivering PoE; Port G1/0/38 has exactly the same configuration and it´s working.

Troubleshooting Fiber Connection on a Catalyst 2960

I am trying to test my fiber connectivity on a Catalyst 2960 before I deploy it. So what I thought I would do is connect it to another switch in my office with a open port for the fiber connection. The other switch is a Catalyst 3560G. Here are the port configurations:
interface GigabitEthernet0/2
switchport trunk allowed vlan 1,100
switchport mode trunk
macro description cisco-switch
interface GigabitEthernet0/25
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,100
switchport mode trunk
The first one is the catalyst 2960 and the 3560G is the second.
When you show the interface for each of these it shows that it recognizes the media but the line protocal and the GigbitEthernet Port is down.
Any Ideas?

Sorry... a fiber optic cable with a connector on each end.
To aid in troubleshooting, many times we loopback the signal back to the originating device. An optical loopback is just connecting the transmit (Tx) to the receive (Rx).
The multimode SFP/GBIC transceiver you are using will allow you to directly connect the Transmit and Receive ports without damage to the unit. This should provide you with a green link LED.
If so, then you can reconnect your fibers and loopback (connect the two fibers together) at the far end of the fiber link (use an optical adapter) and see if you get a green LED.

Bandwidth monitoring on a Catalyst 2960

Hello all, I'm working with two Catalyst 2960 switches and I would like to know if there is a way to monitor bandwidth on individual ports. Ideally I would like to have one graph showing a bandwidth usage reading on each port. I tried using the Network Assistant to accomplish this, but I was only able to view one port at a time. I also tried using a traffic graphing program from Paessler, but a MIB file is needed to allow the program to connect to the switch. When I ran a search on the network management page the 2960 was not on the list for MIB supported products. Is this type of graph possible to do? Or is there a more effective way to accomplish what I would like to do. Any ideas or suggestions would be helpful.

Hi, we have just swapped all our avaya switches with catalyst 2960 (12, 24 and 48 ports) and 3750 (48 ports with 10gig module).
How do I find what port I should monitor for bandwith graphs?
Target[10.0.0.22_loc1]: 1:@10.0.0.22:

Catalyst 2960 Problem with Cisco SPA512

Hi there,
I hope someone can help me.
I don't have much experience with switches, I'm doing the desktop support in our company.
We have Catalyst 4510 R+E to 2 Catalyst 2960 switches and seperate VLAN's for IP Phones and for Internet in one part of our office.
Now I'm running into trouble with some IP Phones that are connected to the 2960 switches. It appears only to happen with Cisco's SPA-512. I've tried FW 7.5.2, 7.5.5 and 7.5.5b. These phones sporadically drop the call / connection, with the red MIC button blinking. Based on my research this means that it looses Internet connection. I have 1 SPA512 with FW 7.5.1 that does not show these symptoms.
I have other phones SPA942 and Polycom IP335 in the same area behind the same switches and no issues.
We've tried to disable auto negotiate and set a fixed transmition rate or either 1Gbps and 100Mbps, both without success.
I also have SPA512 in other areas of the office just connected to our Catalyst 4510 R+E and they work just fine. That's why I don't believe it has anything to do with the 4510, but I can be wrong.
That's all I have for you guys. Hope someone can help me to fix / troubleshoot this..
Frank

SSwitch3#test cable-diagnostics tdr int g1/0/16
TDR test started on interface Gi1/0/16
A TDR test can take a few seconds to run on an interface
Use 'show cable-diagnostics tdr' to read the TDR results.
SSwitch3#show cable-diagnostics tdr int g1/0/16
TDR test last run on: June 27 13:39:21
Interface Speed Local pair Pair length        Remote pair Pair status
Gi1/0/16 1000M Pair A     52   +/- 10 meters Pair A      Normal
                Pair B     52   +/- 10 meters Pair B      Normal
                Pair C     52   +/- 10 meters Pair C      Normal
                Pair D     52   +/- 10 meters Pair D      Normal
SSwitch3#

Gbic loop on catalyst 2960

Hello,
I would like to know if there is a way to validate that a SFP type 1000baseLX is working properly on catalyst 2960.
I am looking for the loop feature that is available on routers.... but not on switches.
The topology is 2 catalyst 2960 switches with both SFP type 1000baseLX connected together with a fiber. This was working find but actually, the two interfaces are down/down.
The idea is to be sure that the problem is on the fiber and not on one of the SFP....
Thank You for your help.

UniDirectional Link Detection (UDLD) addresses your concern regarding the fiber. See http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_46_se/configuration/guide/swudld.html for more information.
For the SFPs themselves, you might want to review http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml for more information.
Hope this helps.

Catalyst 2960 SF Stacking

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