Cisco Switching/Routing :: 4500 Can Connect 10Gb SFP+ To Standard 1Gb SFP
Nov 15, 2011
I'm looking at provisioning a Catalyst 4500 with a WS-X4712-SFP+E module to allow for future 10Gb connectivity via 10Gb SFP+ interfaces. These cards are backwards compatible with standard 1Gb SFP interfaces but I'm wondering about the other way around; ie. can you populate these blades with 10Gb SFP+ interfaces when they connect to Catalysts with only 1Gb SFP interfaces at the other end?
The data sheets don't really explain this. It seems pointless getting 10Gb SFP+ interfaces for the 4500 when it's only 1Gb at the access layer end, but these access switches will be replaced in the near future (~12 months) and if the 10Gb SFP+ interfaces support connections at 1Gb speeds upfront, it would mean I could retain these interfaces when the access switches upgrade to 10Gb connectivity capabilities down the track. Does the 10Gb SFP+ interfaces are compatible with 1Gb SFP's or only other 10Gb SFP+ interfaces?
i am trying to configure my HP 420 access point. I have configure different SSID on it, This access point is connected to cisco 4500 switch, i have configure trunk on up link to access point.my problem is the client are not able to get an IP address form the correct vlan if i tagged the SSID to it.
in the following the output of show run int in cisco 4500 switch:
interface GigabitEthernet3/13 description ==== HP ACCess point ==== switchport trunk allowed vlan 99,130,132 switchport mode trunk
is it possible to prevent the users with static IP's to connect the Network?We use Cisco sw 4500 series as an access and distribution switches.Is there any features on the switches that fit my request?
i will be buying 2 x 3750-E and will connect our server with 10G to the x2 port of 3750. is X2-10gb-SR compatible with this? do i need any converter module?
Created two 6509s as VSS with just one 10gb connection?I know it is recommended to use both the 10gb connections on the sup-720 from below configuration guide
" Information about VSL Topology # A VSS contains two chassis that communicate using the VSL, which is a special port group. Configure both of the 10-Gigabit Ethernet ports on the supervisor engines as VSL ports. "
I have 4900M with X2-10G-LX4I need to have a link from it to 3560X GLC-SX-MM using MM Fiber Patch Cord.any configuration required in 4900M to change the speed of X2-10GB-LX4 to 1GB ?
I have two 3750 stacks that are currently connected using two1GB fiber connections in an etherchannel. I now added new switches to each stack with 10GB modules in them. We would like to bring up the 10GB connection, but still have one of the 1GB lines as a backup, or even the whole etherchannel. Is there a way for us to make the 10GB the main and the 1GB the standby?
For a simple 4x sites design for backup consolidation (3x sites connected to one central site), does the design in the attached JPEG make sense and is the configuration achievable using the specified parts?
Brief Explanation: - Each site is to have servers with 2x 10Gb/s Ethernet (both teamed/bonded/etc) and one NIC on each of the 2x switches in the site (if possible). Each site will also have 2x Cisco Nexus 5596UP Switch (though the P version may be used instead of the UP). - Two of the sites are within 10KM of the central site - The last site is about 35KM from the central site - It is required to have a minimum bandwidth of 10Gb/s between any site and the central site - I have specified 10Gb/s LW SFP+ and 10Gb/s LW SFP+ (for the 2x 10KM and 1x 35KM sites) - are there any special licenses needed? - as asked before, can such a "simple" design work as-is? - what sort of single-mode fiber would fit the bill (especially for the 40KM link) - 9nm?
We are having troubles getting a 10Gig interface to come up with a carrier... it shows down down.We are using X2-10GB-LR on a 6500 and SM fiber, distance to carrier hand off is about 90 feet.
According to: [URL] The receiver power on a X2-10GB-LRis Max 0.5 Min -14.4
Our carrier is sending at +5db. Currently the interface is down.
My question is; would the interface even come up if it is receiving a powerful signal?
Here is DOM output for our interface.
show interfaces transceiver detail
Optical High Alarm High Warn Low Warn Low Alarm Transmit Power Threshold Threshold Threshold Threshold Port (dBm) (dBm) (dBm) (dBm) (dBm) [Code]....
I haven't got time to test different configurations yet. Just want to quickly ask here about the fall-over route-map configuration. I saw lots of example using pip prefix-list to specify the next-hop for tracking. Is that the only way you can do it? Can you just use a standard ACL to specify that host like permit host 10.2.2.2? ip prefix-list will do like ip prefix-list seq 5 permit 10.2.2.2/32. And you apply the prefix-list to route-map then. ACL will work?
Checking the logs we have seen the following messages:
%SPANTREE-3-PRESTD_NEIGH: pre-standard MST interaction not configured (Port-channel3). Please, configure: 'spanning-tree mst pre-standard' on ports connected to MST pre-standard switches. %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet2/0/1, changed state to down %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel3, changed state to down %LINK-3-UPDOWN: Interface Port-channel3, changed state to down %LINK-3-UPDOWN: Interface GigabitEthernet1/0/1, changed state to down %LINK-3-UPDOWN: Interface GigabitEthernet2/0/1, changed state to down
When this happened, the interface that was actually blocked by STP didn't come to forwarding state, and as a result this switch became isolated.This switch is connected to a switch that runs standard MST, and to some switches that run PVST but have bpdufilter enabled as we don't want them to participate on the STP. It is a 3750 switch with software version 12.2(55)SE5.
As far as I knew, when a MST pre-standard BPDU was received, the interface was able to receive more pre-standard BPDUs, but I didn't know it would turn the link down. Why the links went down, and if there is any way we can configure those links to accept only MST standard BPDUs.
I would also like to know if there is any chance a switch running PVST can send a MST pre-standard BPDU if it has a software version 12.2(25)SEE3.
I have configured about 20 of these switches now, and notice in the port listings a TE1/1//1 TE1/1/2 and GI1/1/1 GI1/1/2 uplink port. There are only two uplink SFP+ ports. I now have a reason to install with a 1Gb uplink to the Core. I am using a GLC-LH module at each end. I did configure the TE1/1/1 port for the uplink. Does not work though..Do I need to configure the two GI1/1/1 and 1/1/2 ports for uplink, remove the TE configuration for the uplink to work? Using the UNIVERSAL code with a LANBase license.
I am having trouble updating the epld image on the 10gb Module of Nexus 7k. we have two nexus and two 10gb module. Tried the other one and it worked fine. its jsut the first one that has problems with the epld image. i have tried on both the nexus on two different slots and still the same error.
I get the following error:
Chain connectivity is broken while upgrading the FPGA. (Error Number : 36)
We are trying to connect 2 nexus 5558UP (5.1.(3)N1(1)) with 10G-SFP+-LR interfaces. The interfaces are not genuine cisco's (smartoptics) but as far as we can tell, they are accepted by the hardware. If we take a look at the optical levels, we can see that the switches can see eachother (double-checked by bringing down one interface to see if optical levels really disappears) on optical level, well within limits. I found a notice about changing debounce timers but this doesn't work, setting it to 0 or 1000 doesn't make a difference. Copies of the different show int commands can be found at the end of this text.
Wim Holemans Network Services University of Antwerp
swnxds01-enable# sh int eth1/3 transc details Ethernet1/3(code)
Any experience with bundling a 10GB interface on a 3750G-16TD-S with a WS-C3750X-48T-S with a 10GB interface. I have worked with 5 different TAC engineers and so far I have not gotten an answer on why the switch will not let me bundle the 10GB with another 10GB interface.
Same switch Stack – not a cross stack.
Tried every configuration possible with no luck. I originally thought it might be the stack-ring speed – I corrected that today and it is running at 32GB –
The only thing I can think of now is it might be a hardware limitation on the 3750G-16TD-S ?
Q. What performance of the 10 Gigabit Ethernet port on the Cisco Catalyst WS-C3750G-16TD switches?
A. The Ten Gigabit Ethernet uplink on the Cisco Catalyst WS-C3750G-16TD switches is 1.25:1 oversubscribed and provides maximum throughput of 8Gb/s. –
I have a catalyst 4506 switch with one sup-engine WS-X45-SUP6 L-E, which consist of two X2-10GB-SR Transceiver( CISCO).IOS on the sup-engine is cat4500e-ipbase-mz.150-2.SG1.bin. IOS detected only one X2-10GB-SR Transceiver in Ten1/2. When I insert the X2-10GB-SR Transceiver in Ten1/1
C4K_GLMMAN-3-X2PLUGGABLESEEPROMREADFAILED: Failed to read seeprom on port Te1/1. Reinsert X2 m
But the problem is i need two X2-10GB-SR Transceiver for Uplink.
We have many 3750E's and need to use Finisar X2 modules FTLX8541E2. After 15.0(1) IOS upgrade the 3750's now recognize the Cisco part X2-10GB-LRM's, but will not recognize our Finisar modules.
I would like to get CbQos on a Cisco ASR 1002S (IOS-XE Software (PPC_LINUX_IOSD-IPBASEK9-M), Version 15.1(1)S1). With the standard OIDs (cbQosIfIndex - 1.3.6.1.4.1.9.9.166.1.1.1.1.4).
I have a Catalyst 2960-S switch and a pre-standard IP Phone (Cisco 7960). When I connect the phone to the switch the switch recognizes the phone and supplies power. I would like to prevent this behaviour. ie. I would like to disable detection of pre-standard equipment. Is there a command I can issue on the 2960-S to do this? For example, on a switch from a different vendor I can issue the command: no power pre-std-detect to prevent it from detecting the 7960 phone, is there an equivalent command on the Catalyst 2960-S ?
specifying Cisco devices and I've made an error.I have 2 Catalyst 2960S switches (C2960S-24PS-L).Based on this snippet of web copy from the Cisco website:What's new for the Cisco Catalyst 2960-S Series Switches with LAN Base Software: # 10 and 1 Gigabit Ethernet uplink flexibility with Small Form-Factor Pluggable Plus (SFP+), providing business continuity and fast transition to 10 Gigabit Ethernet I bought a cable assembly "SFP-H10GB-CU3M" (3 meter copper twinax cable with 10GB SFPs on each end). Unfortunately, it appears after more careful reasearch that my specific model 2960S's are not directly compatible. , can I force these 10GB SFPs down to 1GB and get them to work with my switches or do I need to return and repurchase?
We currently have 2 6509s with redundant Sup720-3b's and PFC3B daughter cards which are connected together over dark fibre using the Gb fibre connectivity built into the supervisors.
The requirement is to upgrade this connection to 10Gb as inexpensively as possible.
Do I need to purchase new supervisors in order to do this properly or can I use a separate 10Gbe module (we have a spare slot), i.e. can I get away without using the connectivity built into the supervisors?
The other idea I had was putting a couple of 3750-X switches at each end to sit in front of the 6509s and provide the 10Gb connectivity between sites. I could then use the existing Gb uplinks on the supervisors whilst also providing connectivity for some devices that currently connect to the 6509s but could just as well connect here.
we have just purchased a few 3750x's that we intend to add to our 3750g stacks. We've purchased the 10gb uplink modules, C3kx-nm-10gt, but when they are installed they are not appearing in the switches web gui nor can you configure them correctly. If we upgrade a 3750x to 15.0.1 they seem to work fine. All of our current 3750g's are running 12.2(58)SE2 IPBASE so we don't really want to have to upgrade them all to 15.0.1
Are we missing something or do the 10gb modules only work properly with ios 15.0.1?
I have 3560's in my current environment, operating in the core/distro/access layers. The switches are in a star configuration, performs only layer 2 switching, and utilizes copper (no plans on moving to fiber).
With a fairly limited budget, I've been contemplating on upgrading the central node to a stacked 3750X to eliminate that single point of failure, and trunk the rest of the 3560's to the stacked switch. I wanted to be sure that the 3750X switches will be right for my environment (90-100 hosts), and if what I explained above is a good solution.
I'm also looking like to upgrade 6-7 of my servers (and SAN) with 10GB network cards. Do the ports on the 3750X have port densities capable of 10GB? If not, what switches provide that capability?
I have a customer with Cisco 7940 and 7960 IP phones that they do not plan to replace. They do want a new LAN and are looking at the Catalyst WS-C2960S-48FPD-L and WS-C2960S-24PD-L as access layer devices.
these switches support the Cisco pre-standard PoE required by the 7940 and 7960 IP phones.
We got a requirement for 2 number of X2-10GB-SR line card WS-X45-SUP6-E in WS-C4506-E.Customer want to connect with Fujitsu primary server . they have 10 gig module so i guess it will support with that.Also a doubt this X2-10GB-SR we can directly connect the firber sc multimode cable write no additional sfp required write .And for my knowledge if i use CVR-X2-SFP. I think to multimode sfp we have to insert write so do we get to 10 gig ports in one slot or how is it .
I know that the C3KX-NM-10GT network module has two (copper) ports that support speeds of 1Gps or 10Gps. Could this module work with one port at 1Gb and the second port at 10gb simultaneosly? It's possible to work each port of the module with different speed (one port working on 1Gb mode and the other working on 10Gb mode)?
My manager ordered some Cisco X2-10GB-LR in hopes of having a 10GB uplink between two buildings. We put those modules on the switch and we are getting link flap errors, then the ports goes into err-disabled state.
I was later told there is a couple of "hops" between the buildings, it could be a patch panel or a fiber switch, I do not know at this point. My guess is, we are getting link flap because the "hops" are only running at 1GB. Would this be a typical sympton of the link flap error message? and is there any way to test if there is switches inbetween our routers?
