Cisco Switching/Routing :: Maximum Etherchannels In 2960S Using Flexstack
Oct 25, 2011how many etherchannels can the 2960S support when it is stacked? I understand it initially has 6 channels.
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Cisco Switching/Routing :: Maximum Number Of EtherChannels On 2960S
Apr 19, 2013what is the maximum number of etherchannels i can build on a Cisco 2960S stack. We hoping to connected 15 servers using 2 port channels between two stacked 2960 for redunancey. So what is the max number of channels can i build using the 2960S? Is the max 6 or is it more?
View 4 Replies View RelatedCisco WAN :: Maximum Etherchannels In 2960 / 2960S?
Apr 6, 2011I am interesting what is a number of maximum supported etherchannels in 2960 and new 2960S switches?
View 1 Replies View RelatedCisco Switching/Routing :: 2960S / LAN Design Using 10G EtherChannels?
May 11, 2011We are designing a LAN Network for ourselves.The proposed design is as follows:
4 x 2960S switches in a Stack Access-Stack-I 4 x 2960S-PoE switches in a second Stack Access-Stack-II
2 x 3750X switches in a Stack Core-Stack
Now I would like to connect it in the following manner ?First,I would like to use EtherChannel using the 10Gig LinksSecondly, I would like to use Cross-Stack EtherChanel too.I have given a graphical illustration of the connectivity Now my Qs: a) Will the 2960S supports EtherChannel using the 10G links and the 3750X too... b) Does the proposed solution will work... or It will have any problems.
Cisco Switching/Routing :: To Use Flexstack To Stack Two 2960S 48 Port Switches
Oct 11, 2012I would like to use flexstack to stack two Cisco 2960S 48 Port switches (2960S-48TD-L) for redundancy. Each switch will have a single 10G uplink into our Nexus 7K. One switch in the stack will terminate to linecard 6 (N7K-F248XP-25) and the other switch will terminate to linecard 7 (N7K-F248XP-25). My question is how many flexstack cables are needed? Do I need only one cable or do I need two to connect the two 2960s ?
View 2 Replies View RelatedCisco Switching/Routing :: 2960S 12.2(55)SE3 Flexstack Unable To Configure Etherchannel
Jan 15, 2012I am trying to configure etherchannel on 2 2960S connected by a flexstack with 2 ports g1/0/52 and g2/0/52 on each 2960.
these switch are connected to a CAT4500, I know that I can only use LACP because of cross-stack but when I force the switch to use LACP witch channel-group 2 Mode active the switch do this :
%With PAgP enabled, all ports in the Channel should belong to the same switchCommand rejected (Port-channel2, Gi1/0/52): Invalid etherchnl mode
% Range command terminated because it failed on GigabitEthernet1/0/52
I don't know how to bundle the 2 ports on the 2960 stack. each time I use : channel-group 2 mode on there is no error
but the switch do this :
*Mar 1 00:45:32.290: %EC-5-CANNOT_BUNDLE2: Gi2/0/52 is not compatible with Po2 and will be suspended (trunk mode of Gi2/0/52 is dynamic, Po2 is trunk)
*Mar 1 00:45:32.531: %EC-5-CANNOT_BUNDLE2: Gi2/0/52 is not compatible with Po2
[Code].....
Cisco Switching/Routing :: 2960S - FlexStack Module Auth Failed
May 31, 2012I have been trying to make a stack with two 2960S. They have the same IOS but they behave as they were not connected.One is in production and I am attaching a brand new one to it; in the one that is in production I get these 2 messages:
FlexStack Module SmartChip Authentication Failed.I tried switching the modules and the outcome is the same, so I think the modules are ok.What to you recommend, is there a way to bypass this authentication?
Cisco Switching/Routing :: C2960S Flexstack Serial Number
Mar 21, 2012Is there a CLI-command to see the serial number of the flexstack module installed in a C2960S.
View 13 Replies View RelatedCisco Switching/Routing :: How Many EtherChannels Supported In Catalyst 3750-E
Oct 13, 2012I am working in an environment where i have to use more etherchannels, any way that how many etherchannels could we create on Cisco Switch 3750 e. do they can utilize high process resources of CPU.
View 4 Replies View RelatedCisco Switching/Routing :: Why Does Routing Work Without Declaring Vlan10 On 2960s-24td-l
Oct 28, 2012I have recently split the voice vlan (10) from the data network (1), and am wondering why my catalysts and router do not require an interface Vlan10 statement. In the past I used OpenBSD boxes to do the routing, and I first needed to configure vlan 10 on the interface before I could get inter-vlan communication to work. With these Cisco devices it works, and I am wondering if it is because of VTP, for the fact that the ports maybe just pass all traffic, or is there some other explanation? Below is the setup, and firmware is up-to-date on all of the devices.
When I plug a phone into the POE SGE, the phone turns on, obtains an address on the proper subnet, and conversations are clear (whereas without the ip nat inside on the new subnet the calls had a lot of static). Possibly the reason that it works is because the phones properly create the tcp/ip packet, and it hops over the trunks and creates the states so that traffic routes back properly. I will install wireshark to see exactly what is going on, but is there a simple explanation that I am overlooking?
Cisco Switching/Routing :: How To Enable Multicast Routing On 2960s
Mar 23, 2013I need to enable multicast routing on 2960s but the command "ip multicast-routing" isn't available on my release (12.2.(55)).
From which release this command is available?
Cisco Switching/Routing :: 2960S And MLS QoS Map
Oct 8, 2012I have C2960S-48FPS-L and C2960S-24TS-S both of them are using C2960S-UNVERSALK9-M image with version 15.0(2)SE on both I run "mls qos"
and on 48FPS-L I run "mls qos map cos-dscp..."on 24TS-S I cannot run it. there is no such command. there is just "mls qos rewrite..." and "mls qos srr-queue..." variants.
I thought that one image give the same set of commands...?
Cisco Switching/Routing :: 2960S Multicast Routing
Jan 17, 2012while i am configuring a port on switch .The switch reloads.After reload the show version says,System returned to ROM by bus error at PC 0x458F6C, address 0x0,show version from the effected switch is,Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(58)SE2, RELEASE SOFTWARE (fc1).
View 4 Replies View RelatedCisco Switching/Routing :: STP Between 2960S And SG300
Dec 8, 2011I am currently having an issue with connecting a Catalyst 2960-S switch to a Small Business SG300 switch. When I connect them they are unable to form a link. When I do a show spanning-tree it says the mst link is in dispute.
View 1 Replies View RelatedCisco Switching/Routing :: 2960S QoS For VoIP?
Mar 25, 2012I read some papers about QoS. The thing is that I have to implement 30 switches with QoS to connect to a lot of Cisco IP phones. The switches are Cisco 2960S with code image "C2960S Software (C2960S-UNIVERSALK9-M), Version 12.2(55)SE3". Should I use autoQoS feature or manually configure them?. How should I treat uplinks between access switchs and core/distribution? I have a lot of doubts regarding queueing, because all the info I had read its for another model/image.
View 4 Replies View RelatedCisco Switching/Routing :: Mix 10G And 1G Uplinks On 2960s?
May 16, 2013I'm looking at the WS-C2960S-48TD-L and have a question about the uplink ports. Is it possible to mix 10G on one uplink and 1G on the other? The datasheet says 2x10G SFP+, 2x1G SFP so I am thinking mixing is not possible.
View 6 Replies View RelatedCisco Switching/Routing :: How To Use USB Option On 2960s
Nov 5, 2011just got new hardware and decided to try the newer USB port for IOS upgrades. I could not get the switch to recognize my 2gig flash drive. Do I need a proprietary stick or special format?
I also noticed when I removed it the switches crash dump and rebooted?
Cisco Switching/Routing :: Can RPS2300 Support 2960S
Aug 18, 2012When using dynamic configuration tools, if I choose 2960 (not 2960s), I have the option to choose RPS2300 as redundant power, but when I choose 2960s, I cannot choose RPS2300. However, in a document describe both 2960 and 2960s, it said that RPS2300 can be used. Does RPS2300 support 2960S?
View 1 Replies View RelatedCisco Switching/Routing :: 2960S QoS Configuration Not Work
Dec 20, 2012Recently I'm working with my client to setup their network and he want me to limit user access internet bandwidth to 2 Mbps and the topology show below.Users ---> Switch ---> NAT Router ---> (int gi1/0/24 - qos apply) Edge Switch ---> INTERNET ROUTER (12Mbps) --->> INTERNET,This is my configuration, but it doesn't work, the end user still able to get more than 2Mbps internet speed.Access-list 100 permit ip any any dscp default,class-map match-all QoS_Floor_Limit, match access-group 100.
View 1 Replies View RelatedCisco Switching/Routing :: Stack 4900M With 2960S?
Mar 11, 2013I would like if is possible to stack a Cisco 4900M with a 2960S. I know it is not the most common situation but i need it.
View 1 Replies View RelatedCisco Switching/Routing :: 2960S MAC Address Control
Feb 20, 2013I would like to enable port security to hardcode the MAC address on the ethernet switch. There are 5 ethernet ports in the same ethernet switch to be assigned for one person (one note book), e.g. port 5, 6, 15, 16 and 23. The model of ethernet switch is cisco 2960S and one MAC address is configured on 2960S.
1. Does 2960S support this requirement to allow input the same MAC address to 5 different port?
2. If yes, can ethernet switch "smart" enough to forward the packages to "active" ethernet port which is connected to notebook and the rest of four ports are inactive.
3. if no, any solution or any work around to achieve this requirement
Cisco Switching/Routing :: 2960S Cannot See VLAN100 Traffic On SW1
Jan 29, 2013I have two switches (2960S's) both with IP Phones on VLAN100..We need to monitor voice traffic via a monitor port on SW1 of all VLAN100 traffic on both switches.The following is what we have configured, but we cannot see VLAN100 traffic on SW1
According to Cisco doco you cannot have a SPAN and RSPAN on the same session, however since these are two sessions on SW1, I would have thought it to be OK.
Cisco Switching/Routing :: 2960s / Add One More Switch In Stack?
Apr 29, 2013I have a running setup having 2 Cisco 2960s 24 TS switch with Stack configuration. Now I want to add one more same Cisco switch. My questions are:-
1) How can I do this...(Should follow the same process as I did before.
2) Could I do this without impacting the service. i.e. without rebooting the switch.
3) What should be the connection archiecture as of now since there is two switch so it is connected 1 -1 and 2-2. but for 3 switch should we require to change the connectivity.
Cisco Switching/Routing :: Dscp Marking In 2960S
Jul 21, 2012i did on cisco 2960S switch at user ingress interface. but the marking is not showing in show policy-map interface gig 1/0/10 interface and ACL is not showing any match.
I also had a config reference from 2960S cisco guide.
access-list 103 permit tcp any any eq 80
access-list 104 permit tcp any any eq 23
access-list 105 permit icmp host 172.24.68.4 any
class-map IN_HTTP
match access-group 103
class-map IN_TELNET
match access-group 104(code)
Cisco Switching/Routing :: High CPU Utilization On 2960S?
Feb 8, 2011We have seen high CPU utilization on some Cisco switches of type 2960S. Also we got info, that applications are running with poor performance or with interruption.Following IOS is loaded: C2960s-universalk9-mz.122.55.SE
View 9 Replies View RelatedCisco Switching/Routing :: Dynamic Bandwidth On A 2960S?
Dec 20, 2012They have a /28 wan adress coming from ISP, that gives out 100Mbps, going to a Cisco 2960S switch (ver. 12.2) the switch is only holding 1 vlan. Connected to the 2960 are 3 firewalls/routers from other manifactors, each creating their own network. The customer wishes for a solution where each final FW/router gets minimum 33% and maximum 100% of the bandwidth, depending on how much each final Fw/router are in use.
View 1 Replies View RelatedCisco Switching/Routing :: Stack 4900M With 2960S?
Mar 11, 2013I would like to know if i can and how stack a Cisco 4900M with a 2960S. I know it's not the most common but i need it.
View 2 Replies View RelatedCisco Switching/Routing :: Information About PoE Of Switch 2960S
Jan 21, 2013I use the Switch 2960S support PoE and 10 access points cisco.I have one more question:
-- If all 10 access points cisco use copper cable to connect to 2960S, 5 access points use power adapter and 5 access points use power from Switch. How Switch 2960S will provide power for 10 AP or switch 2960S will understand and only provide power for 5 APs?
Cisco Switching/Routing :: Stack 2960s Not Full
May 7, 2013I have 4 switchs 2960s in stack, but this not full ring. [code]the interface stack 1 for switch 1 is down and interface stack 2 for switch 4 is down.I do insert this command "switch 1 stack port 1 enabled" but interface are not up.
View 4 Replies View RelatedCisco Switching/Routing :: What Is The Maximum Nr Of VPN Clients On 2821
Mar 10, 2013What is the maximum VPN Clients that could be connected to cisco router 2821, with this IOS c2800nm-adventerprisek9-mz.124-20.T.bin
View 3 Replies View RelatedCisco Switching/Routing :: IOS Upgrade Option In 2960S Switch
Dec 11, 2012We have a Cat2960-S Series PoE+ currently running 12.2(55) SE5 ios with SW image C2960S-UNIVERSALK9-M.We want to upgrade the ios to the lastest version but found there are 2 version: 12.2(53) SE2 and 15.0(1) SE.Which is the best & suitable for upgrade?
View 3 Replies View RelatedCisco Switching/Routing :: SFP-H10GB-CU3M Not Working In 2960S
Feb 15, 2013We have a 2960S using a single SFP-10GBase-SR to our Core switch. We are planning connecting the 2960S to a pair of Nexus 5k switches using Copper SFPs. We are already doing this on another 2960S so I didn't expect any surprises.
When I removed the unused SFP-10GBase-SR from te1/0/2, the interface was removed from the config and a gi1/0/50 was created in its place. Once I inserted the SFP-H10GB-CU3M, I expected that it would create a new te1/0/2 interface, but it didn't. I got the following errors: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Gi1/0/50 has bad crc %PM-4-ERR_DISABLE: gbic-invalid error detected on Gi1/0/50, putting Gi1/0/50 in err-disable state
I didn't personally order the cables, but there is no Cisco label on them, so I'm assuming it is a 3rd party SFP. After looking at other posts related to unsupported SFPs, I ran the following commands: no errdisable detect cause gbic-invalid service unsupported-transceiver
After reconnecting the SFP, it didn't go into err-disable, but I still received the following error: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Gi1/0/50 has bad crc
My other working 2960S appears to be using 3rd party SFP as well, but I can't see the brand. Is there anything else worth trying or should I just suck it up and order Cisco SFPs?
Cisco Switching/Routing :: Catalyst 2960S IOS 15.0.2 IPv6 Don't Work
Aug 8, 2012Just I have upgraded some 2960S to IOS 15.0(2)SE from a IOS 15.0(1)SE3 and the catalyst don't switch any IPv6 traffic. Don't work any RA and also don't work any unicast IPv6 traffic from any interface. I can see some references to IPv6 changes in the FHS (First Hop Security) in the Release Notes, but no any reference to changes in the configuration.
The switches don't have any IPv6 specific configuration and the sdm is the default templata. Returning to 15.0(1)SE3 everything work ok.
On Catalyst 2960, and 3560E this IOS version seem to work fine with IPv6.