Gigabit interface converter

I?m using a Cisco Gigabit Interface converter (GLC-LH-SM) in my router 3845. Is that possible to use commmand "speed" in that interface to connect to a fastethernet port? Does it om?nly work at 1 Gbps?
Best regards
Ant?nio Machado

Hi
AFAIK it works only at 1Gbps speed.
regds

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How to configure isdn pri on gigabit interface on AS 5850 router

hello All,
i currently have a project at hand which is a voip project using sip protocol. my client wants to send voip traffic to my router using STM interface with SIP protocol. But the challenge is how do i convert the sip protocol to ISDN PRI on another STM gigabit interface before sending it to my PSTN switch for onward termination to the customer. currently i use serial interface to communicate with my PSTN using E1 for other existing clients in other to terminate calls to customers. please see sample configuration below:
interface Serial10/1:15
no ip address
encapsulation hdlc
no snmp trap link-status
trunk-group JKN
isdn switch-type primary-net5
isdn incoming-voice modem 64
isdn map address .* plan unknown type unknown
isdn send-alerting
no cdp enable
thank you.
Adekunle

hello n-kirillov,
Yes i mean STM as Synchronous Transport Module for Optical Network. currently, the medium of transport for communication between my router and the PSTN switch is the serial interface whose configuration i have shown above. also currently E1 pri cables are connected to this serial interface and E1s are provision for this serial interfaces directly from the switch for communication with the PSTN switch.
the question now is that my switching team now wants be to communicate with their switch using fibre from STM interface on my router without using PRI cables. is this achievable? if yes what is the configuration like?

AIR-AP3502i gigabit interface issue

Support Community,
          I currently have an issue with my AIR-AP3502i gigabit interface. I connect my AIR-AP3502i to my 3560G POE switch and the port will not negotiate to1GB. I have tried auto negotiate and hard coded settings but when I try those settings the switch and AP interfaces go into an up down state. Has anyone seen this issue before?

Never mind, I was mistaken, the command was there. Thanks for the new command.
Interface Speed Local pair Pair length        Remote pair Pair status
Gi0/7     100M Pair A     0    +/- 4 meters Pair A      Normal
                Pair B     132 +/- 4 meters Pair B      Fail
                Pair C     110 +/- 4 meters Pair C      Fail
                Pair D     1    +/- 4 meters Pair D      Normal
Interface Speed Local pair Pair length        Remote pair Pair status
Gi0/7     100M Pair A     0    +/- 4 meters Pair A      Normal
                Pair B     132 +/- 4 meters Pair B      Fail
                Pair C     110 +/- 4 meters Pair C      Fail
                Pair D     1    +/- 4 meters Pair D      Normal

Cisco 7609 - optical gigabit interface

Hi all,
I have a strange problem with the optical gigabit interface of a Cisco
switch 7609. This is the problem:
I have two 7609 cisco switch (A and B) cross connect with a optical
fiber.
All port of both switches are configured as followed:
switchport
switchport mode acces
shutdown
no cdp enable
no ip address
end
With the same optical fiber cable i have connect two ports of the switches and I brough up the interface.
I got the following result if i run 'show ip interface brief' on the switches:
SW A - SW B
port 1 - port 1 --> link down protocol down
port 2 - port 1 --> link up protocol up
port 1 - port 2 --> link up protocol up
port 2 - port 2 --> link up protocol up
Why if i connect port 1 on both switches the link don't brought up?
Have anyone some idea for the possible cause of the problem?
Thank you
BR
\Sergio

Try:
http://www.cisco.com/en/US/products/ps6902/products_implementation_design_guide_chapter09186a008062f863.html

Cisco 2950 Gigabit interface trunking

This is the small part of the network design that i want to seek advice from the forum .
++ we have two cisco 2950 switch
switch1 ==gigabit trunk == switch2 .
we want trunking to enable between these two two switches by using there gigabit ethernet interface ie
switch 1 interface GigabitEthernet0/1 is connected to switch 2 interface GigabitEthernet0/1 and switch 1 interface GigabitEthernet0/2 is connected to switch 2 interface GigabitEthernet0/2.
i need advice in following areas
++ what cable do we need to connect these switches (i guess cross over cable will do )
++ do we have configuration on the tech tip page
for achieving the same ?

Hello,
for the trunk connection you need a four twisted-pair crossover cable:
Figure B-11 Four Twisted-Pair Crossover Cable Schematics for 10/100/1000 and 1000BASE-T Ports
http://www.cisco.com/en/US/partner/products/hw/switches/ps628/products_installation_guide_chapter09186a0080346679.html#wp1020386
You can either configure 802.1Q or an ISL trunks between your switches. For 802.1Q the configuration would look like this:
Switch1
interface GigabitEthernet0/1
switchport trunk encapuslation dot1q
switchport mode trunk
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
Switch2
interface GigabitEthernet0/1
switchport trunk encapuslation dot1q
switchport mode trunk
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
And for ISL encapsulation, the configuration would look like this:
Switch1
interface GigabitEthernet0/1
switchport trunk encapuslation isl
switchport mode trunk
interface GigabitEthernet0/2
switchport trunk encapsulation isl
switchport mode trunk
Switch2
interface GigabitEthernet0/1
switchport trunk encapuslation isl
switchport mode trunk
interface GigabitEthernet0/2
switchport trunk encapsulation isl
switchport mode trunk
You could also configure a GigaChannel to bind both interfaces into one logical link, for better throughput. For 802.1Q:
Switch1
interface Port-channel1
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet0/1
switchport trunk encapuslation dot1q
switchport mode trunk
channel-group 1 mode on
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
Switch2
interface Port-channel1
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet0/1
switchport trunk encapuslation dot1q
switchport mode trunk
channel-group 1 mode on
interface GigabitEthernet0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
And for ISL:
Switch1
interface Port-channel1
switchport trunk encapsulation isl
switchport mode trunk
interface GigabitEthernet0/1
switchport trunk encapuslation isl
switchport mode trunk
channel-group 1 mode on
interface GigabitEthernet0/2
switchport trunk encapsulation isl
switchport mode trunk
channel-group 1 mode on
Switch2
interface Port-channel1
switchport trunk encapsulation isl
switchport mode trunk
interface GigabitEthernet0/1
switchport trunk encapuslation isl
switchport mode trunk
channel-group 1 mode on
interface GigabitEthernet0/2
switchport trunk encapsulation isl
switchport mode trunk
channel-group 1 mode on
HTH,
GP

ASA5510 Security plus Licence - Need Gigabit interface

Hi,
i am using asa 5510 version 8.2 and i want to upgrade my licence with the security plus licence because I need one interface ( eth0/1) to be in Gigabit.
Whats the process to install this licence and can we choose on which interface will be the gigabit function or is it only on eth0/0 and eth0/1?
Thank you

In addition to Rudy's correct answer, the process for installing it is to use your PAK which you will receive when you purchase the license to get an activation key issued (via the self-service Cisco licensing portal or by calling the TAC and asking for licensing).
You enter the PAK code plus your serial number and get an activation key specific to your hardware. A simple one line command then activates it. No service interruption is required to activate the license (at least not directly) but it's generally recommeded to shcedule a reload (service-affecting of course) to make sure the license stays put after cycling the firewall.
Hope this helps. Please rate helpful answers.

Lock speed/duplex on Gigabit-interface in Catalyst 3750?

Hi
How do I lock speed to 1000 and Duplex to full on a switch-interface in a Catalyst 3750? Default is "Auto-duplex, Auto-speed" and the only relevant command I can find is "speed nonegotiate" but even with this command on an interface show interface saids Auto, Auto.
Thanks in advance
Regards
Jimmy Larsson
CCNA, CCNP, yada yada yada. ;)

As I said it depends on what type of interface you have. You have a 10/100/1000 Mbps interface.
Here are the options for a 1000Mbps only interface
Switch(config)#int gig 1/0/1
Switch(config-if)#speed ?
nonegotiate Do not negotiate speed
Here are the options for a 10/1000/1000Mbps interface
Switch(config-if)#int gig 2/0/1
Switch(config-if)#speed ?
10 Force 10 Mbps operation
100 Force 100 Mbps operation
1000 Force 1000 Mbps operation
auto Enable AUTO speed configuration

HELP: Can't Get G5 Quad to Share Internet of Dual Gigabit Interface

I just got (yesterday) a G5 Quad with the dual Gigabit ethernet connections and I am trying to share my network connection through the Quad (no more ports available on my switch).
- I am connecting the Quad (en0) directly to a Gigabit Switch and get ip 192.168.2.191
- I connect a G4 Dual 500 to the Quad (en1).
In Network utility, the Quad on en1 and the G4 show ip 192.168.2.1 (which is the IP of my router)
When I try to connect to the internet via the G4, Safari just sits there. No error page, just the spinning lollypop.
When I connect the G4 directly to the switch, instant access.
My settings on the Quad are as follows:
Sharing/Services:
Personal File Sharing, Personal Web Sharing checked, all others not checked.
Sharing/Internet:
Share your computer connection from: Built-in Ethernet 1
To computes using: Built-in Ethernet 1 not checked, Built-in Ethernet 2 checked;
Unfortunately, I have no available spots on the switch, and was hoping I could use the secondary port on the Quad to File/web share one more Mac.
Any help or suggestions would be greatly appreciated.
Dual G5 2GHz, 2.5 GB RAM, 360 GB HDD Mac OS X (10.4.2)

Did you happen to allow enough time for a power recycle when switching the router connected to your DSL modem?
Modem/Router Power ReCycling
- Power-off the DSL/Cable modem, Internet Router, & computer(s). (Wait at least 30 minutes. If possible, leave the modem off overnight.)
- Power-on the DSL/Cable modem; Wait at least 30 minutes.
- Power-on the Internet Router; Wait at least 5 minutes.
- Power-on the computer(s)

Gigabit interface status faulty please help

When I do a show interface status on 4500 switch I got a status faulty
I did never see such thing
Port- Name-Status-Vlan-Duplex-Speed Type
Gi2/7-jsh3 faulty 188 full XXBaseSX
Could you please help?
Thanks a lot

this usually indicates the port is faulty (bad; not working; will not work)
this may have been set via the POST of the device. the internal tests failed and the port was marked FAULTY.
this could also be the result of a good port simply went bad for some unknown reason.
try to disable/reEnable the port. will probably still say faulty. (cannot initialize a faulty port)
try to reset the blade the port is on, or the supervisor if it resides on that.
do a "show test" (catOS) to see what the POST found when it did its powerOnSelfTests.
i've seen plenty of FAULTY ports and 99% of the time, the port is simply bad and must be replaced. (usually an ASIC or the likes)

Is there a GBIC to sfc patch cable?

I believe the currently installed fiber is GBIC, but the switch converter is mini-GBIC. Is there a way to get these to work together?
Thanks.

I'm not really sure what you mean, GBIC is a type of interface convertor and usually has SC Fibre connectors, the mini-GBIC you are referring to may be an SFP which is a smaller type of interface convertor and usually has LC Fibre connectors.
GBICs and SFPs will work together as long as they are the same type ie Single Mode or Multi Mode and you also need to make sure the TX and RX Optical Power levels are within the specified limits at both ends of the link.
On some switches the command "show inventory" may show the type of interface convertor installed.
SITE-A-CAT#show inventory
NAME: "SITE-A-CAT", DESCR: "Cisco Catalyst c2950 switch with 24 10/100 BaseTX ports and 2 GBIC (Gigabit Interface Converter) slots"
PID: WS-C2950G-24-EI   , VID: L0 , SN: FCZ1041Y0KJ
NAME: "GigabitEthernet0/1", DESCR: "longwave fiber gigabit ethernet port adapter"
PID: GBIC_LX           , VID: 30 30 30 30, SN: AGS094801V1
Or try the command "show interfaces gi/x/x/x capabilities" (where gix/x/x) is the interface number.
PE-CAT-A#show interfaces gi1/1/1 capabilities
GigabitEthernet1/1/1
Model:                 ME-C3750-24TE
Type:                  1000BaseLX SFP
Speed:                 1000
Duplex:                full
Trunk encap. type:     802.1Q
Trunk mode:            on,off,desirable,nonegotiate
Channel:               yes
Broadcast suppression: percentage(0-100)
Flowcontrol:           rx-(off,on,desired),tx-(none)
Fast Start:            yes
QoS scheduling:        rx-(not configurable on per port basis),tx-(4q2t)
CoS rewrite:           yes
ToS rewrite:           yes
UDLD:                  yes
Inline power:          no
SPAN:                  source/destination
PortSecure:            yes
Dot1x:                 yes
Hope this helps

3560 Interconnect Cable - Port Disabled b/c non-compliant GBIC

I purchased a CAB-SFP-50CM Catalyst Interconnect Cable to connect two 3560s. When the cable is plugged in, I receive the following error in the Cisco Network Assistant:
Description: Gi0/1: This port has been disabled because Non Compliant Gigabit Interface Converter (GBIC) connector detected.
Recomendation: Replace connector with cisco compliant Gigabit Interface Converter (GBIC) connector. Refer switch technical documentation to determine cisco compliant connector. Enable the port again.
Any help? I assumed this would be a "plug and play" installation. Re-enabling the disabled port doesn't seem to help.
Thanks in advance...

Thanks for the response - this is a Cisco branded cable:
Manufacturer: CISCO
Description: CATALYST 3560 SFP INTERCONNECT CBL 50CM
Part Number: CAB-SFP-50CM=
I thought I had done my research...according to the 3560 data sheet
(http://www.cisco.com/en/US/products/hw/switches/ps5528/products_data_sheet09186a00801f3d7d.html)
"These ports also support the Cisco Catalyst 3560 SFP Interconnect Cable for establishing a low-cost Gigabit Ethernet point-to-point connection."
However, it doesn't seem to work. Is it possible that I've got a defective cable, or is there something else that I need to do?
Thanks again.
Edited to add: the cable I have is pictured in the data sheet (Figure 2) and the switches I am trying to interconnect are model WS-C3560-48PS.

Difference between GBIC and SFP module

when its best to use GBIC and When to use SFP ?
what i know is basically SFP is a smaller version of GBIC but I am not clear when to use what any special recommendation ?

GBIC - Datasheet definition:
The industry-standard Cisco Gigabit Interface Converter (GBIC) is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network. Cisco GBICs can be interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-T, 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, or 1000BASE-CWDM interfaces on a port-by-port basis.
http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product_data_sheet09186a008014cb5e.html
SFP - Datasheet definition:
The industry-standard CiscoÂ® Small Form-Factor Pluggable (SFP) Gigabit Interface Converter is a hot-swappable input/output device that plugs into a Gigabit Ethernet port or slot, linking the port with the network (Figure 1). SFPs can be used and interchanged on a wide variety of Cisco products and can be intermixed in combinations of 1000BASE-SX, 1000BASE-LX/LH, 1000BASE-ZX, or 1000BASE-BX10-D/U on a port-by-port basis.
http://www.cisco.com/en/US/prod/collateral/modules/ps5455/ps6577/product_data_sheet09186a008014cb5e.html
Ok, now if you have a look at the above datasheets for GBIC's & SFP's, you would find that GBIC & SFP are different in there sizes, hence it is more of a question as to which gigabit solution your device supports. If your device supports GBIC, like 4500's, you will have to go for a GBIC, & if your device supports SFP, like 3750's, you will have to go for a SFP. These days all the latest devices would have SFP's normally.
Also, here is a very good document which lists almost all the GBIC's & SFP's & the devices on which they are supported, you may check your device on this list & decide which one can you use accordingly.
Hope that helps !!

Disabled GBIC SFP module

I have 2 WS-3750-48PS switches in a stack, i have today installed 2 x MGBSX1 sfp's to link new fibre to other building on the grounds.
I have now got 2 types of error messages showing :-
EVENT NOTIFICATION -
Description: Gi1/0/3: This port has been disabled because Non Compliant Gigabit Interface Converter (GBIC) connector detected.
Recommendation: Replace connector with cisco compliant Gigabit Interface Converter (GBIC) connector. Refer switch technical documentation to determine cisco compliant connector. Enable the port again.
SYSTEM MESSAGES
unfortunately i haven't got the full message but it was saying thet there was a CRC error in the EEPROM and that maybe a software update would rectify the problem.
The stack is running 12.2(35)SE5-IP-BASE software at the moment and i have seen on a Cisco page that ALL cwdm sfp's are compatible with my switches (http://www.cisco.com/en/US/products/hw/modules/ps4999/products_tech_note09186a00807a30d6.shtml#support3)
Should i upgrade the software to 12.2.55-SE3 ?

The reason for the Non Compliant error message is that the MGBSX1 sfp is not a "compatible" product with the WS-3750-48PS switch, per the following compatibility document:
http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL_6981.html#wp137837
According to the document you referenced, the following statement may be the reason you are receiving CRC errors on the port.
"Use Third Party SFP Modules
The use of third party SFP transceivers with Cisco devices is not supported by Cisco. Cisco-approved SFP modules have a serial EEPROM that contains the module serial number, the vendor name and ID, a unique security code, and cyclic redundancy check (CRC). When an SFP module is inserted in the switch, the switch software reads the EEPROM to verify the serial number, vendor name and vendor ID, and recomputes the security code and CRC. If the serial number, the vendor name or vendor ID, the security code, or CRC is invalid, the software generates this security error message and places the interface in an error-disabled state."
Tom

Adding 3rd Linksys SRW224G4 Switch

Hello,
I am looking for some directions on adding a 3rd Linksys SRW224G4 to our company network.
Our currect setup is as follow:
Exchange Server/Domain Server: Nic#1 and Nic#2
File Server: Nic#1 and Nic#2
Linksys VPN/Router RV016
3 DSL lines and T1 are connected to the Linksys VPN/Router
Switch#1
G1 - Connected to Linksys VPN/Router
G2 - Connected to Nic#2 on Exchange Server
G3 - Connected to Nic#2 on File Server
G4 - Connected to G3 on Switch #2
Switch#2
G1 - Not used
G2 - Connected to Nic#1 on Exchange Server
G3 - Connected to G4 on Switch #1
G4 - Connected to Nic#1 on File Server
How do I go about connecting the 3rd switch?
Thanks,
b

Hi there! You have different ways to connect a switch to another switch. As a matter of fact, you can simply use a regular numbered port. Since you're using G1 to G4 and the second switch has available port (G1), then you can use this port to connect to another switch.
Also, SRW224G4, if I'm not mistaken has 2 mini-GBIC ports. The miniGBIC (gigabit interface converter) port is a connection point for a miniGBIC expansion module, so the Switch can be uplinked via fiber to another switch. The MiniGBIC port provides a link to a high-speed network segment or individual workstation at speeds of up to 1000Mbps. Take note of this, on the SRW224G4, MiniGBIC ports are shared with Gigabit Ethernet ports. If a miniGBIC port is used, then the shared Gigabit Ethernet port on the Switch cannot be used. Mini-GBIC 1 is shared to Port G3 and Mini-GBIC 2 is shared to Port G4 (this has to be considered only if you're planning to use a fiber from one switch to another). Thanks!

Fibre Connector questions.

Right now all our campus are using 62.5 micron fibre cables using SX GBIC termination. We are going to implement a 50 micron fibre cable on our new building, my question is. Do I need to add a specialize termination on the SX GBIC connector? Or if someone can point me to the right direction I would appreciate. Hope my question is understandable.

Hello,
the SX GBIC works with 62.5 and 50.0 micron core sizes, so you do not need to add or change anything.
Check this link for a feature comparison of the various GBICs (scroll down to ´Table 1 Cisco GBIC Port Cabling Specifications´):
Cisco Gigabit Interface Converter
http://www.cisco.com/en/US/partner/products/hw/modules/ps872/products_data_sheet09186a008014cb5e.html
Regards,
GP

Gigabit interface converter

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