Why Cisco implements so much switching capacity in their switches Obviously,16 Gbps of permutation performance is too much for the 8,8 Gbits (24*200+2*2000) needed by ports so why they put so many bandwidth?
View 3 RepliesHow i can view the capacity throughput (backplane) of core switches (6509)? How i know much is in use?
View 2 Replies View RelatedI am buying a Nexus 5K (N5K-C5548UP-FA) with the layer 3 card (N55-D160L3 - Nexus 5548 Layer 3 - Daughter Card).The switching capacity of it is 960 Gbps but I know I should expect less doing the Layer 3 function (it will only be used with static routing).What switching/routing capacity should I expect? How can I estimate it? What else should I consider?
View 1 Replies View RelatedWhen we list the available features for each license package on the cisco nexus licensing guide (page 5) [URL]
The N55-BAS1K9 provide unresitrcted OSPF routing capabilities. but on the Cisco web site they seen that the N55-BAS1K9 provide a limited (256 routes) learned via OSPF. N.B : the hardware plateforme is NX5K 5596UP with L3 Routing module 160Gbps.
Can LMS 4.1 give a report for port capacity in stack switches? We are starting to have issues where our techs are going out and plugging devices into switches and the switches are getting full. We would like to be able to see how many ports are left in each switch.
View 2 Replies View RelatedIf I have two stackable switches one switch uplinks to one 6509 core switch and the other connection uplinks to another 6509 core switch, and also the other stackable switch does not connect to the core switches. Because I am using hsrp and also we are not using vss then one uplink to the core is not in used only ones is so then how does creating an etherchannel between does two uplinks to both core switches benefit me in anyway such as more bandwith and using both uplinks at the same time or I'm I wrong?
View 7 Replies View RelatedIf I have two stackable switches were only one stackable switch has two uplinks one uplink goes to one core 6509 switch and the other uplink goes to the other 6509 core switch can a Layer 3 etherchannel be used if each uplink go to a different core switch, by the way hsrp is running between both switches and also can you give an example how data will be routed from the stackable switch through the ethernetchannel to one of the core switch accross the WAN to another core switch?
View 1 Replies View RelatedI'm trying to configure intervlan routing between a cisco 2801 router and HP/Amer switches. Using int fa0/1 and subinterfaces I was sure I had it configured correctly, but I cannot ping the default gateways when I place a host in a particular vlan. Below is what I have configured.
HP switch - port 9 connects to fa0/1 on 2801
ip default-gateway 10.1.100.1
trunk 9 Trk1 trunk
trunk 10 Trk2 trunk - to another switch
[code].....
I am using a 3750 as a default gateway for multiple Vlans on a few 2960 switches. The trunk lines are configured and working and I have assigned ip addresses to each of the Vlan interfaces on the 3750. My issue is that I can only ping the ip address on the Vlan interface of the 3750 if I have a working computer plugged directly into the Vlan on the 3750. I only have 3 vlans on the 3750 that have hosts directly connected (vlans 2, 10 and 40) the other vlans ( 20 and 70) don't have any clients plugged into them on the 3750 but the hosts reside on 2 different 2960s that connect via trunk ports. How do I keep the vlan interface on the 3750 switch pingable when I don't have hosts directly connected in that vlan on the 3750? (yes, I have enabled ip routing on the 3750)
View 5 Replies View RelatedI have a simple design with 3750. I configured a route-map which define a next hop. I defined this route-map on a policy on a vlan interface.When I test some ping and a debug ip policy and it seems that my policy never match.Is there any mechanism that prevent the switch from using PBR? I think of CEF .
View 5 Replies View RelatedI have a simple design with 3750.I configured a route-map which define a next hop.I defined this route-map on a policy on a vlan interface.When I test some ping and a debug ip policy and it seems that my policy never match.Is there any mechanism that prevent the switch from using PBR?
View 10 Replies View RelatedWe have a pair of N7K distribution switches connected to a pair of N7K Aggregation switches.We run vPC on both pairs of n7k's.
-n7k-d1 has two interfaces in a Port-Channel connecting to n7k-a1 & n7k-a2. (PC1)
-n7k-d2 also has two interfaces in a Port-Channel connecting to n7k-a1 & n7k-a2. (PC2)
My problem is that Spanning-Tree is blocking PC2 and all traffic from n7k-d2 is traversing the Peer-Link before reaching the Aggregation layer. Is this the best design for connecting two pairs of n7k's with vPC or if a better design would be to connect all 4 links into the same Port-Channel and vPC?
Is L3 ip routing on by default in 3550s? If so is the "ip routing" command visible in the config file? If no - I assume that one would enable L3 routing with that config command.In general terms are there any IOS devices where ip routing is enabled and one would not see the "ip routing" command in config. I.E. if that command is not visible in the config could you assume there is no L3 capablity in that device?
View 1 Replies View RelatedCiscoSwitch1(4506) has 3 VLANs(12,13,14) and Switch2(4948) has 3 different VLANs(22,23,24) and IP routing has been enabled in both switches with SVI interfaces for each vlan. intervlan routing is works fine.Now there is a requirement to connect these switches together. Vlan 12 on the Cisco switch 4506 has to be made available from vlan 22 from Switch2(4948). basically Vlan 12 is having a multicast source (225.0.0.0 & 226.0.0.0) which should be accessabile from vlan 22 of cisco switch 4948.I got 2 ideas
1) Create a trunk between these switches and configure L2 vlan(12) in cisco 4948...i know theoritically it should work but what my concern is Ip routing enabled in both switches will it create any issues? is it a gud solution to this requirement?
2) Create a separate IP network on the ports connecting to both switches and set up routes to the networks.ex- console(config)#ip route 192.168.10.10 255.255.255.0 192.168.20.1.
I have a small campus network using 3750 stackable switches and a 3725 router (see diagram below). Currently the 3725 router is handling inter-vlan routing for the campus and it looks like it's not able to handle the amount of traffic we're pushing. The router CPU sometimes hits above 90% due traffic load. What I would like to accomplish is move L3 process over to the 3750 MDF stack and the IDF1 stack. I am thinking creating SVI's on both MDF stack and IDF1 stack, run HSRP between the two stacks and may be do load balance traffic between the two stack as well.
View 8 Replies View RelatedI have two C2960 switches which have the management VLAN for other switches. These two switches are connected with each other via portchannel. Now the mgmt0 of few switches is connected to switch 1 and few other connect to switch 2.I have also connected the mgmt0 of switch 1 to an access port of switch 2 and vice versa.However in this set-up I am unable to reach switch1 via the mgmt0 IP address. However I can reach the mgmt0 Ip address of switch 2.I can also reach switch 1 and 2 via their int vlan IP.Has some one else experienced this and is their any specific reason why mgmt 0 IP address of switch 1 is not reachable.I have tried doing similar set-up on C3750, but have acheived same result i.e. I am unable to reach mgmt0 of switch 1.
View 4 Replies View RelatedWe are seeing the cpu on 2 of our C500 switches running at 99% with the following process causing the issue,.
View 1 Replies View RelatedI have a server windows 2008 that I would like to have a nic teaming configuration, the server has two nics, each nic is connected to a different switch. One is connected to cisco 2960 and the other is connected to cisco 2950. I have read here in forums about nic teaming but using the same switch. I have not found using different switch. Is this possible?
View 1 Replies View RelatedI would like to know how to stack 2 switch cisco 3550 that IOS C3550-ipservicesk9-mz.122-44.SE6
View 3 Replies View RelatedWe have 3 layer LAN architecture, layer 1 of 6500(IP routing), layer 2 of 4500(L2 switch only), layer 3 of 2960(L2 Switch)In a Single (2960 and 4500) Switch Port Avaya IP phone and PC are connected.Now, the requirement is that, Qos need to be configured for Voice traffic and Data traffic should be in default class of service.We plan to use COS value in Switch 4500 and 2960. We made a sample configuration as below
### For 4500 Switch
class-map match-all VOIP-Access-2MB
match cos 3 5
class-map match-all VOIP-Uplink-20MB
match cos 3 5
[code].....
check these configurations are correct as per standard and if there is any other method of configuration?What need to be configured in L3 Switch(6500)??In 2960, it doesn't support ingress QoS, what impact it will make when compare to 4500? do users experiance any difference?
I have one 3550 switch and i upgraded from 12.1 to 12.2(44)SE . But "tclsh" command is not enabled on this version. As per Cisco, 12.2(25)S is enough to enable TCL interpreter.
View 5 Replies View RelatedI've upgraded a 6509 switches wich are running in VSS, from IOS 12.2 (33)SHI1 to 12.2 (33)SHI5. After that I'm facing the folowing log messages periodically. [code] I know that this is a diagnostic result from TestUnusedPortLoopback feature. But this interface is disabled (shutdown).
View 5 Replies View RelatedI want to setup HSRP between three 6509 switches with a single virtual ip for all the three switches.
know if its possible and share any site or config.
We have an issue where switches are failing weekly in a switch closet. In the past month we have gone through several 3750G switches and a couple 4510s. The power supplies have eventually made a popping noise and had to be replaced. on the 4510s we've tried two chassis and gone through several power supplies.The switches have been behind UPS systems so should be receiving conditioned power.Could load from the PoE devices really be causing this? I wouldn't think it's power since they are behind a UPS.
View 5 Replies View RelatedSwitch A connects to Swich B and C using port channel. I am going to bring down one link on each.
switch A is server farm , switch B and C are core 01 and 02 . and all are 3750 switches.
1. what will be the impact on the network in terms of spanning tree recalculation
2. what duration are we talking about until the spanning tree convergence happens?
3.I plan to shut down the link from CLI to bring down the links
We have two 6500 switches and I am unable to login to these switches anymore, but i was able to connect to them yesterday via Telnet. The strange part is that it happened for both switches at the same time.But now when i try to login, it gives me a message "password required, but none set". I can login to them via console.Is it because the 0 - 4 VTY connection are being used and there is no password set from VTY 5 to 15?The config has not changed.
SWITCH-1
line con 0
exec-timeout 0 0
password xxxxx
login
line vty 0 4
[code]....
I have a pair of Cisco Nexus 7000 switches in a VPC configuration with several Nexus 5000 switches attached. The config has about 50 or so VLANs each with a /24 subnet address assigned. These SVIs include HSRP etc and are all a member of the same VRF. Unfortunatelu I am not able to advise/confirm if the issue is on the last vlans and svis configured as I am not aware of the history/chronology of the configurations applied.
The issue I have is that one of the Nexus 7000s seems to take some time providing output or even freezing until I issue a Ctrl+C when issuing simple commands such as "show ip arp vlan 123 vrf abc123" or "show mac address-table dynamic vlan 1234". This seems to affect only some but not all vlans or all SVIs in the VRF. This behaviour is the same whether accessing the cli via a console, SSH and/or telnet session.A check of CPU and mem reveals little utilisation to cause any concern and will begin a bug toolkit hunt for version 6.01.
I am looking to cluster the aforementioned switches using the CLI. All the documentation that I have found all speak to performing the cluster configuration using CMS. I can only get to these switches via remote console so a GUI is out of the question for me. My ultimate goal is to configure these (2) switches for HSRP. Howver, everything that I found leads me to believe that I have to cluster in order to confiure the HSRP on these switches.
View 1 Replies View RelatedI have 2 6509 switches configured with VSS.As per advised my managment I have to enable SSH but it is not available existing IOS which is "s72033-ipbase-z.122-33.SXI3.bin". SSH available in "s72033-ipbasek9-mz.122-33.SXI10".
upgrade the IOS with VSS configured switches.
Are the non-S series 2960 switches stackable or are they only able to be uplinked?
View 6 Replies View RelatedI have an issue with couple of Cisco 4900M switches. We just got them and tried to use the TwinGig Converter on the 4 ports 10G module.
The problem is that the switches sees the new module in slot 2 and when we are inserting the TwinGig Converters we are getting the error message and when we are trying to type the command this command it does not work."hw-module module <slot> port-group <group> select gigabitethernet",When we go to config T, the only thing we can type is "hw-module module <slot> and if we do a ? the only thing is available is logging and power and we can't type
Port-Group or anything else. Is this a hidden command or we have to something else?
I have two C4506 switches and I would like to create two L3 links between them by using only one physical link. I will then assign each L3 link to a different VRF.
I think I have two choices but I'm not sure however that the second one is possible...
---------------
1st choice: creating two VLANs and two SVIs on each switch
interface Vlan10
ip address 10.10.10.1 255.255.255.252
ip vrf forwarding vrf1
interface Vlan20
ip address 10.10.10.5 255.255.255..252
ip vrf forwarding vrf2(code)
My question is regarding VSS configuration on Cisco 6513 switches. My understanding is that the hardware and software configuration on the devices must be exactly the same for the VSS to function correctly. Do the Bootstrap versions also have to be identical?
The production switch is running Bootstrap Version 12.2(17r)SX5, while the new switch is running Bootstrap Version 12.2(17r)SX7.