Compatibility Cisco 3750 and GBIC 1000Base-ZX/SFP

Hello,
I have some problems to use a GBIC 1000Base-ZX on a cisco 3750.
With some research , i have find these thing :
The Catalyst 3750 models support these Cisco SFP options:
1000BASE-LX
1000BASE-SX
1000BASE-T
1000Base-ZX didn't appear.
What do you think of such thing.
Thanks for help

The 1000BASE-ZX SFP (Cisco product number GLC-ZX-SM=) is supported on the Catalyst 3750:
Cisco Optical SFP Transceiver Compatibility Matrix
http://www.cisco.com/en/US/products/hw/modules/ps5000/products_device_support_table09186a0080212cba.html
List price in the US is the same as for the 1000BASE-ZX GBIC (Cisco product number WS-G5487=)
It's possible that the information you have found has not been updated yet. I believe the ZX SFPs were among the last ones to become available. The Release Notes in the link below are the first ones to mention this SFP, they refer to it as "new hardware" (versus the SX and LX SFPs):
Release Notes for the Catalyst 3750 Switch Cisco IOS Release 12.1(14)EA1 July 2003
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat3750/12114ea1/ol421501.htm
Hope this helps.

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Mixed environment with Cisco 3750 and SRW248G4

Dear Community,
as mentioned above in the subject field, we are evaluating Linksys for Business products.
We are using Cisco products (i.e. Cisco WS-C3750G-12S-S) for core networking, due to new investment planning, we are evaluation how to upgrade our access switches.
In fact, we would like to implement Linksys by Cisco products, SRW248G4 specific. These devices should be connected over fibre cabling using Linksys by Cisco MGBSX1 optical modules.
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Thank you in advance.

Ni hao Seng,
Without an understanding of what you are trying to achieve I can however say the following;
I have used the wonderful SRW platform (SRW2008P) in my network for two years now. I have no difficulty in setting up VLAN tags and trunking to a traditional Cisco equipment.
Most of the problems I have seen is not understanding how to setup VLANs correctly. I can appreciate that as VLANs took me a long time to understand.
I think for the benefit of the good people out there that use this community, I should put together a Video on Demand that goes through creating a VLAN that shows how to setup VLANs on a SRW switch, taking into account the three modes the switch ports can be set in (access,general and trunking modes).
regards Dave

MAC address flapping on 2 x Cisco 3750 (Stacked)

Hi All,
I am having some issue with my connectivity.
The setup with HP virtual connect (VC) is as below:
Server A NIC 1 -- VC 1 -- Switch A
NIC 2 -- VC 2 -- Switch A
Server B NIC 1 -- VC 1 -- Switch A
NIC 2 -- VC 2 -- Switch A
The VLAN configuration are done on individual NIC card on the servers and the switchport on Switch A facing the VC connect are all on trunk mode.
Currently I am seeing MAC address flapping on my Switch. The switches are CISCO 3750 and are being stacked so it appears logically as 1 switch.
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Below is an output of the flapping on the switch.
%SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xxxx.0637 in vlan 1 is flapping between port Gi2/0/3 and port Gi2/0/5
%SW_MATM-4-MACFLAP_NOTIF: Host xxxx.xxxx.46eb in vlan 1 is flapping between port Gi1/0/5 and port Gi1/0/7
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Hi,
Problem of MAC FLAP could resolve by following methods:.
Check with the server providers to see if the OS and server platform support 'NIC' Teaming (NIC Bonding).
FYI - NIC teaming allows users to group two or more physical NICs into a single logical network device called a bond. Once a logical NIC is configured, the virtual machine is not aware of the underlying physical NICs. Packets sent to the logical NIC are dispatched to one of the physical NICs in the bond and packets arriving at any of the physical NICs are automatically directed to the appropriate logical NIC. If one of the underlying physical NICs is broken or its cable has been unplugged, server will detect the fault condition and automatically move traffic to another NIC in the bond.
Hope that help
If helpful do rate
Ganesh.H

Part number for 1000Base-T SFP in CSS 11503 and CSS11506 Gigabit IO Modules

Question 1:
===========
I am looking through the CSS11500 Series Hardware installation guide at this link:
http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20_v8.10/installation/guide/instg.html
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2. On the CSS5-SCM-2GE and on the CSS5-IOM-2GE - Are the GBICs interchangable between these two modules? Meaning are the GBICs for these two modules the same?

Hi,
In regards to question #1. The part number we use when processing an RMA is:
GLC-T=; QTY: 1; Desc: 1000BASE-T SFP
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Regards
Pete..

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Hello,
I have a Cisco 3750-X 24S equipped with GLC-GE-100FX optical module to provide 100Mbps connectivity to workstation. I have to migrate the workstation NIC to 1 Gbps and, after that, I have to replace the 100base-FX SFP with the 1 GB SFP.
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Thanks
Gabriele

Paolo is correct in that you do not need to change the configuration for the switch to recognize the SFP.
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Hope this helps.

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Hi,
I have been trying to set up a LACP link between my SRW2048 and Cisco 3750 using two gigabit ethernet links.
Whenever i plug one cable in the interface does not come back up.
I have already sucessfully been able to create a LACP link between the 3750 and a catalyst 2960 for two cables.
Both interfaces at both units are set up as trunks for Vlans 1 (default and untagged), 4, 99, 101, and 102, then the Port-channel / LAG set also as a trunk with the same vlans.
Does anyone have any ideas why the interface is not even initialising?
If i plug a SRW2048 LAG'd interface into a normal access (vlan1) port on the 3750 it works fine, and vice versa with the 3750 to the SRW2048.
Below is a extract of logs from both:
-- Log from SRW2048
1   2147483579   07-Oct-2008 16:12:24    Informational   %LINK-I-Up: ch1
2   2147483580   07-Oct-2008 16:12:24    Informational   %LINK-I-Up: Vlan 102
3   2147483581   07-Oct-2008 16:12:24    Informational   %LINK-I-Up: Vlan 101
4   2147483582   07-Oct-2008 16:12:24    Informational   %LINK-I-Up: Vlan 99
5   2147483583   07-Oct-2008 16:12:24    Informational   %LINK-I-Up: Vlan 5
6   2147483584   07-Oct-2008 16:12:24    Informational   %TRUNK-I-PORTADDED: Port g4 added to ch1
7   2147483585   07-Oct-2008 16:12:19    Informational   %LINK-I-Up: g4
## Plugged back into standard vlan1 access port ##
## Plugged into LACP enabled port on 3750 ##
## Unlugged from standard vlan1 access port ##
8   2147483586   07-Oct-2008 16:11:10    Warning   %LINK-W-Down: ch1
9   2147483587   07-Oct-2008 16:11:10    Warning   %LINK-W-Down: g4
10 2147483588   07-Oct-2008 16:11:10    Warning   %LINK-W-Down: Vlan 102
11 2147483589   07-Oct-2008 16:11:10    Warning   %LINK-W-Down: Vlan 101
12 2147483590   07-Oct-2008 16:11:10    Warning   %LINK-W-Down: Vlan 99
13 2147483591   07-Oct-2008 16:11:10    Warning   %LINK-W-Down: Vlan 5
14 2147483592   07-Oct-2008 16:11:10    Warning   %TRUNK-W-PORTREMOVED: Port g4 removed from ch1
-- Log from Catalyst 3750
mercury#terminal monitor
mercury#
Oct 7 15:10:44: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet   1/0/17, changed state to down
Oct 7 15:10:45: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state    to down
Oct 7 15:11:54: %LINK-3-UPDOWN: Interface GigabitEthernet1/0/17, changed state    to up
Oct 7 15:11:55: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet   1/0/17, changed state to up
mercury#

The linksys documentation is a little thin on the ground all over.
However, if i have got this correct the Admin key needs to be the same for all interfaces in the same LAG for one switch i.e not the same for both ends of the cable?
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Thanks for your reply.

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What are the exact model numbers (should be written on a sticker)?
You will know if they can be stacked as you will see the 2x stack ports on the back of each switch :)
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If you want them separate, I would connect them via a Trunk link at least so you can have the same Vlans on both.
Thanks

Link between 3750 and 4908 (Lx, monomode fiber)

Hello,
I have a new swtich a C3750 and a 4908 works very well.
I try to link a 3750 and a 4908, my results :
- Port of 3750 and 4908 is up when I put "speed nonegociate" . And juste few packets arrive to the 4908 and I can't ping the 4908.
- Port of 3750 is up with "speed nonegociate", and the port of 4908 stays down....
- Port of 3750 and 4908 stay down without "speed nonegociate" ... :(
You can see the 3750's config in attachments.
Ps : Sorry for my english, i'm a french student :)
Thank in advance

Hi
In recent past i had tried interfacing 3750 installed with LX SFP with third party SFPs installed in Lucent DSLAMs with speed nonegotiate on the cisco 3750 side.
We did face some kinda wierd problems after the lucent DSLAMs get rebooted or sometimes even we disconnect and reconnect the fiber it happened that we failed to get the link(connectivity).
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regds

Question - 1000BASE-LX SFP 30-1299-01

Could anyone tell me what is the correct power supply voltage and maximum current consumption of the Cisco 1000BASE-LX SFP module # 30-1299-01? Thanks.

Duplicate post.

1000BASE-LX SFP 30-1299-01

Could anyone tell me what is the correct power supply voltage and maximum current consumption of the Cisco 1000BASE-LX SFP module # 30-1299-01? Thanks.

SFPs are covered under a Multi-Source Agreement (MSA), which details this information. I don't know if the linked document is the final or latest agreement. Theoretically, all the MSA compliant SFPs should operate in all equipment, but some SFPs may not be supported by the data equipment manufacturer due to other reasons (EMI, heat profile, profit, etc).
The MSA spec indicates 3.3v (+/- 5%) with 300mA max supply current. It is possible that Cisco may have tigher operating tolerances, because they will only support Cisco certified optical modules in their equipment.

SG500X-48-K9-G5 and SG200-18 compatible SFP

Hello,
I am interesting if GLC-SX-MM sfp modules are compatible with following switches: SG500X-48-K9-G5 and SG200-18.
Do you have any information about it ?

Hi,
It doesn't appear that the GLC-SX-MM is compatible with the SG500. I quoted the manual below so you can see the compatible SFPs for the two switches.
Best,
David
Please rate helpful posts.
From the SG500 manual:
The following FE SFP (100Mbps) transceivers are supported:• MFEBX1: 100BASE-BX-20U SFP transceiver for single-mode fiber, 1310 nm wavelength, supports up to 20 km.• MFEFX1: 100BASE-FX SFP transceiver, for multimode fiber, 1310 nm wavelength, supports up to 2 km.• MFELX1: 100BASE-LX SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 10 km.The following GE SFP (1000Mbps) transceivers are supported:• MGBBX1: 1000BASE-BX-20U SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 40 km.Cisco 500 Series Stackable Managed Switch Administration Guide 93Managing Device Diagnostics 8• MGBLH1: 1000BASE-LH SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 40 km.• MGBLX1: 1000BASE-LX SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 10 km.• MGBSX1:1000BASE-SX SFP transceiver, for multimode fiber, 850 nm wavelength, supports up to 550 m.• MGBT1: 1000BASE-T SFP transceiver for category 5 copper wire, supports up to 100 m.
From the SG300 manual:
MSA-compatible SFPsThe following FE SFP (100Mbps) transceivers are supported:• MFEBX1: 100BASE-BX-20U SFP transceiver for single-mode fiber, 1310 nm wavelength, supports up to 20 km.• MFEFX1: 100BASE-FX SFP transceiver, for multimode fiber, 1310 nm wavelength, supports up to 2 km.• MFELX1: 100BASE-LX SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 10 km.The following GE SFP (1000Mbps) transceivers are supported:• MGBBX1: 1000BASE-BX-20U SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 40 km.• MGBLH1: 1000BASE-LH SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 40 km.Cisco Small Business 300 1.1 Series Managed Switch Administration Guide 67Managing Device Diagnostics 7• MGBLX1: 1000BASE-LX SFP transceiver, for single-mode fiber, 1310 nm wavelength, supports up to 10 km.• MGBSX1:1000BASE-SX SFP transceiver, for multimode fiber, 850 nm wavelength, supports up to 550 m.• MGBT1: 1000BASE-T SFP transceiver for category 5 copper wire, supports up to 100 m.

Will on-board Gigabit Ethernet ports on a Cisco 3845 support a 100 Mb SFP?

Hi,
This is a very specific question - hopefully someone has tested this or run into this scenario...
I was trying to connect a Cisco 3845 router to a 100 Mbps circuit. Specifically, I was trying to connect this circuit to the on-board Gigabit Ethernet port (Gig 0/0). This is the port that can be used as either an RJ45 or SFP slot. The only SFP I had was a multi-mode 100 Mbps SFP. When I hooked it up to Gi0/0, I got a message saying the SFP type wasn't supported on the chassis.
I was able to deploy the 3845 and since then I haven't had the correct hardware to recreate the exact scenario. Has anyone experienced this? Is it simply because Gigabit interface on a 3845 won't support a Fast Ethernet (100 Mbps) SFP?
Thanks.

Not all SFP's will just plug in and work. Here are the SFP's that are considered compatible with the 3800 series ISR's.
GLC-LH-SM= Gigabit Ethernet SFP, LC connector, LX/LH transceiver
GLC-SX-MM= Gigabit Ethernet SFP, LC connector, SX transceiver
GLC-ZX-SM= 1000BASE-ZX SFP
CWDM-SFP-1470= Coarse wavelength-division multiplexing (CWDM) 1470-nm SFP Gigabit Ethernet and 1G/2G Fibre Channel (FC)
CWDM-SFP-1490= CWDM 1490-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1510= CWDM 1510-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1530= CWDM 1530-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1550= CWDM 1550-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1570= CWDM 1570-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1590= CWDM 1590-nm SFP Gigabit Ethernet and 1G/2G FC
CWDM-SFP-1610= CWDM 1610-nm SFP Gigabit Ethernet and 1G/2G FC
http://www2.bt.com/static/i/media/pdf/cisco_3800_routers_faq.pdf

HP 6600 connected to Cisco 3750

Hello,
I have a new hp 6600-24XG 10gb switch. I would like to connect it to an existing cisco 3750 core switch so the hp will see the network. Is it possiblle to connent one of the 10 gig ports to the 3750's one gig port and set the speed to one gig?
Would I have to buy a module for one or the other of will this just now work?
I appreciate any feedback.
Thank you

miczellcisco wrote:Hello,I have a new hp 6600-24XG 10gb switch. I would like to connect it to an existing cisco 3750 core switch so the hp will see the network. Is it possiblle to connent one of the 10 gig ports to the 3750's one gig port and set the speed to one gig? Would I have to buy a module for one or the other of will this just now work?I appreciate any feedback.Thank you
According to HP's product page, the ports in that switch are 10 GbE only - so no you can't connect to it at one gig.
You could buy a 10 gig module for your 3750 switch - a C3KX-NM-10G (SFP), C3KX-NM-10GT (Copper) or C3KX-SM-10G (SFP with advanced features like Netflow), install it and use that to link to your HP switch.
Cheers

Need help for Fiber GLC-LH-SM connection between Cisco 3750

Please help me. I want to connect my two Cisco 3750 switch by gbic GLC-LH-SM.Unfortunately, when i trying to connect,it's not uplink.
More information about two switch below:
Gi1/0/51 notconnect 1 auto auto 1000BaseLX SFP
switch 2 show interface status
Gi2/0/51 notconnect 1 auto auto 1000BaseLX SFP
I have no idea to deal with it,any ideas ?

are the gbics cisco original ?
if yes then just make sure of the cable which should be Single mode.
if still not working try to reverse the cable connectors on one side as well.

Cisco ASA 5505/Cisco 3750

I have a Cisco 5505(base license) and a Cisco 3750(48 port). I want to be able to connect to the 3750 on different vlans(for home lab),but I'm no able to ping the "outside" IP of the ASA. I can ping the different vlans from the ASA once I created the routes from the ASA.
3750 config:
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
hostname SwitchA
no aaa new-model
switch 1 provision ws-c3750-48p
ip subnet-zero
ip routing
no file verify auto
spanning-tree mode pvst
spanning-tree extend system-id
vlan internal allocation policy ascending
interface FastEthernet1/0/1
description Uplink to Cisco ASA 5505
switchport access vlan 100
switchport mode access
spanning-tree portfast
interface FastEthernet1/0/2
no switchport
no ip address
interface FastEthernet1/0/3
interface FastEthernet1/0/4
interface FastEthernet1/0/5
switchport access vlan 10
interface FastEthernet1/0/6
interface Vlan1
no ip address
interface Vlan2
ip address 10.10.0.1 255.255.255.0
interface Vlan3
ip address 10.10.1.254 255.255.255.0
interface Vlan10
no ip address
interface Vlan100
description SW-to-ASA
ip address 172.16.100.2 255.255.255.0
interface Vlan172
no ip address
interface Vlan182
no ip address
interface Vlan192
no ip address
ip classless
ip route 0.0.0.0 0.0.0.0 172.16.100.1
ip http server
ip http secure-server
ASA Config:
interface Vlan1
shutdown
no nameif
no security-level
no ip address
interface Vlan10
nameif users
security-level 100
ip address 172.16.10.254 255.255.255.0
interface Vlan172
no nameif
security-level 100
ip address 172.16.100.1 255.255.255.0
interface Vlan192
nameif OUTSIDE
security-level 0
ip address 192.168.1.1 255.255.255.0
interface Ethernet0/0
switchport access vlan 192
interface Ethernet0/1
description Trunk to Switch
switchport access vlan 172
Is this even doable?

Hi,
I believe you have the problem with your no-nat configurations..... you to exempt NAT for the traffic from 172.16.10.0 (Anyconnect VPN pool) to 192.168.1.0/24 (Inside LAN) to make this work
object network acvpnpool
subnet <anyconnect VPN Subnet>
object network insidelan
subnet <inside lan subnet>
nat (inside,outside) source static acvpnpool acvpnpool destination static insidelan insidelan
Make sure that you are able to reach the GW/Inside ip adress of the firewall from LAN machine.... all routing in place properly..... Thanks!!!
Regards
Karthik

Compatibility Cisco 3750 and GBIC 1000Base-ZX/SFP

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