Cisco Infrastructure :: 4503 - Connection To 3COM 4900 At Physical Layer
Oct 2, 2003
I have at the core a CISCO 4503 and need to connect various 3COM 3300/4400/4900 access switches thru fiber. The problem is that the Cisco core 4503 switch fails to recognize only the 4900 3com switches ie the link status shows down. The fiber multitude link is tested and OK.The modules on both the switches ie 1000baseSX are also tested and ok.
The Cisco switch has a 6port gb ic with 1000baseSX moules and the 3COM 4900 has a 4-port 1000baseSX module.
View 3 Replies
ADVERTISEMENT
Nov 15, 2011
I have a question if I Stack a Catalyst 3750 L3 with a Catalyst just L2, will we able to use all L3 capabilities?
Switches are
WS-C3750G-24TS-E1U
WS-C3750V2-24PS-S
View 4 Replies
View Related
Sep 25, 2012
I would like to ask if it is possibe to stack a 3Com 3cr17161-91 to a layer 3 Cisco Switch? The two will be stacked using the avaialble SFP modules.
View 4 Replies
View Related
Jul 8, 2012
recommend a cisco core switch and access switches in IPTV network infrastructure?I was ask to implement a network for IPTV system but i don't have idea what will be the model i will use.
Core Switch = Cisco 4503
Access Switches = Cisco 3560X
View 3 Replies
View Related
Jun 9, 2013
We have an ASA 5505. 5505 comes with two default vlans 1&2 with each of them marked as inside & outside respectively.My query is , if i do not want to use vlans on 5505 and only want to use the Ethernet ports as pure physical layer 3 ports, is it possible?i.e. i want to assign a layer 3 ip address on eth0/0 and eth0/1 and make them as the inside & outside interfaces rather than vlans. is it possible to do away with vlans in 5505 & will it work otherwise?
View 3 Replies
View Related
Mar 18, 2012
I want to setup VLAN with the switches SG300 and SLM2024. What is the suggestion to connect these 2 switches. We have the Juniper net screen.
View 1 Replies
View Related
Dec 10, 2012
Is there any physical or technical diferrences between PWR-3845 AC/2 and PWR-3845 AC? We are trying to order replacement parts and wondering if PWR-3845 AC is for one power supply and AC/2 means you get two with one order?
View 1 Replies
View Related
May 30, 2012
We’ve just begun the transition from our old 3Com switches to new Cisco switches and we’ve encountered interoperability problems as we start the transition.Goal: Extend 6 VLANs (each representing an IP subnet) via fiber from a port on the 3Com 5500G-EI to a port on the Cisco SG-300-52
We assign an IPV4 address to the Cisco SG-300-52. We can successfully ping/web-manage at this address if we do a temporary copper jumper from a 3Com switch to the Cisco. IP address is in the subnet assigned to VLAN7•2) At the 3Com side, the fiber port is set as “hybrid” and is passing VLAN 1 untagged; VLANs 3-8 tagged•3) At the Cisco side, the fiber port is set as “trunk” and is defined with VLAN 1 untagged and VLANs 3-8 tagged.
If I try to change the management interface on the CISCO from VLAN 1 to VLAN 7 (as I would on the 3Com), I lose connectivity over the temporary copper connection•B)
If I remove the temporary copper jumper from the Cisco (keeping the “working” management IP address) and create the fiber link between the 2 switches, I lose connectivity to the management IP , If I set the 3Com fiber port to “access” and make the fiber connection, I can ping the management interface – but of course, I can’t pass the other VLANs to untagged access ports on the Cisco – and it has the fun side benefit of messing with IP management settings on other 3Com switch stacks attached to the 5500G-EI. However, it does demonstrate that we can get network traffic communicating over the fiber link between the 2 switches.
How I can proceed to a) have the management IP address in the IP subnet defined on VLAN 7 while passing the other VLANs to access ports on the Cisco? BTW, I’m a networking neophyte (it’s a very small part of my job and I do it infrequently), so I prefer to use GUI management to CLI options, although I can perform CLI configuration if presented with the right commands.
View 1 Replies
View Related
Jan 11, 2012
I am installing a connection between Brocade MLX and Cisco 4503 using SE and SVI's. Below is the config for each. Am I missing anything like MTU Ignore or something along that nature?
*** Cisco 4503 (v15.01) Config ***
VLAN 35
name EOC_Gi1/2
[Code].....
View 3 Replies
View Related
Nov 7, 2012
Today I woke up and wanted to connect to the internet via my laptop. The current network I have is the DSL modem connected to a WR841ND TP-LINK router, and then connected via LAN port to my desktop PC, and via Wi-Fi to a Laptop.However, my connection was unsuccesful. I power cycled both the modem and the router, awaited for a stable connection, and tried again with no result.That's when I noticed the lights on my router seemed strange. While the router's LAN port 1 to the computer was connected and lit, the LAN port 4 was also lit, but it wasn't connected to anything. Then I noticed my wan port showed the same behaviour, since it was already unplugged, but its light was still on.
That's when I decided to do a factory defaults reset, a hard reset, and reuploaded the firmware to the router. No change at all.I decided to connect my DSL modem to the computer directly, and internet works like a charm, so everything points to the router as the source of the problem.Now, I wanted to know. What would be the procedures I should follow to test or repair the router before declaring it "deceased"? Could this be more of a firmware problem? A hardware one?
View 1 Replies
View Related
Jun 19, 2012
I am using cisco c3660 to act as Terminal Server for the communication of production machines in my company, recently there is a communication lost issue happen and its due to physical cable unplug from the machine. to troubleshoot for this issues i have to physically go inside my production area to check on it, as i understand from vendor we can check on the physical machine to see whether the LED light on the module is green or not, but in case of need to troubleshoot at night time, its time consuming as i need to travel back to company. is there any command that i can issue in the router c3660 to check on the physical connection between c3660 router and the production machine? the IOS version is IOS (tm) 3600 Software (C3660-I-M), Version 12.1(4)
View 3 Replies
View Related
Feb 12, 2013
in our environment we have a 6509E as a core switch which is connected to five 3750G installed in remote sites and are layer 3 routes. the routing protocol is ospf. i am just wondering if we could possbily create a vlan in the core switch and extended it to the remote site throug layer 3 connection. The reason we are thinking to do this we want to have a server redundancy if one of the server goes in the core site we can just turn on the server which is in the same vlan in the remote site so that we can limit the downtime .
View 4 Replies
View Related
May 21, 2012
I have two 1841's connect to the Internet via DSL;
fa0/0 --- 1841-R1 --- DSL1 ---------------------[INTERNET]--------------------- DSL1 --- 1841-R2 --- fa0/0
I am on the LAN attached to fa0/0 on R1 and I need layer 2 connectivity to a device on fa0/0 on R2. I'm not sure if this is possible with 1841's or not? I made a GRE tunnel between the two and was going to add a BVI and bridge the tunnel at each end with fa0/0 at eah end, but the 1841's don't support BVIs so I'm a bit stumped here! Would L2TP work here?
R2 is a remote router running C1841-SPSERVICESK9-M. R1 is local running C1841-ADVENTERPRISEK9-M. I can't change the remote router so if the answer is not support in C1841-SPSERVICESK9-M I won't be able to do this.
View 3 Replies
View Related
Dec 18, 2011
I need a L3 conection between a VSS Cluster and 2 Nexus 7000. Is ECMP the best solution ?
View 3 Replies
View Related
Oct 13, 2011
The module just won't come up. Stays in off-line state. On two identical 5Ks, so its not hardware failure.Have the licenses and running code 5.0(3)N2(2).
View 1 Replies
View Related
Sep 12, 2011
I need to know if Cisco Works LMS 3.1 can support 4900 switches series or not?
View 2 Replies
View Related
Jan 12, 2011
I need to attach a QOS policy to a layer 2 WAN interface between two sites. This is actually an extended LAN circuit with 500Mb/s of allocated bandwidth. The interfaces are Gigabit so I want to make sure I don't attempt to transmit traffic faster than 500Mb/s. What is the best way to implement an outbound QOS policy that sets the minimum and maximum speed to be the same? This policy will be implemented on a 4900M with the 20 port GigE module
View 3 Replies
View Related
Jan 23, 2012
Planning to implement HSRP in layer 3 switch.
We have two numbers of Cisco 4900 ME Switches. Basically want LAN failover from these devices. There are about 400 users in our network. I have attached rough network topology for your reference(I am not good at Microsoft Visio). Need to know implementation of the HSRP in these switches. Two distribution switches(Cisco 4900 ME Switches) are connected to 4 Access switches and these are connected to the LAN.
View 2 Replies
View Related
Aug 28, 2012
VLAN MAC address filter does not seem to be working on my 4900 switch. However the same config works fine when tested on my 3750 & 3560 switches.
Since user from different VLANs requires to be blocked, Unicast MAC address filter will not be feasible solution. VACL did not work on my 4506 switch too. K
Below is the config done on 4900 switch
mac access-list extended ABCpermit host 0003.0de9.d5ea anyexit
!
vlan access-map drop-mac 10
[Code]......
View 2 Replies
View Related
Feb 9, 2012
We need to connect several DSLAMs on the 4900 switch, every DSLAM has 4 VLANs configured (VOIP service, MGMT, ADSL Private, ADSL Public), and sends the traffic for each service tagged with appropriate VLAN id according to the table:
VOIP: 608
MGMT: 594
ADSL PRIVATE: 2900
ADSL PUBLIC: 2930
On the DSLAM side it is very simple configuration, just a normal trunk with 4 VLANs transversing the link. On the 4900 I need to isolate the traffic for ADSL PRIVATE & PUBLIC service so DSLAMs connected to the same switch do not have L2 connectivity between them. For VOIP and MGMT they must communicate with each other. DSLAM acts also as a VOIP GW so it must communicate with other DSLAMs for VOIP service. Also VLAN 200 is configured on ME 4900 for switch management traffic.
This 4900 Switch connects to MPLS PE router, which offers L3 VPN service for VOIP & MGMT service, and L2 VPN for ADSL service (PPPoE traffic to BRAS). Fortunately we have ES+ linecard to support many ethernet features. I tried this config:
1) VOIP, DSLAM-MGMT, MPLS-MGMT configured as normal VLANs
2) ADSL PUBLIC & PRIVATE configured as isolated secondary VLANs, primary VLAN for ADSL PRIVATE is 2008, for PUBLIC 2308
3) Configure DSLAM facing ports on ME 4900 as private-vlan trunks
4) Configure ME 4900 uplink port to MPLS PE as a private-vlan promiscous trunk
5) Configure ethernet services on MPLS PE for each tag that comes from ME 4900 (ES+ cards are awesome, i love them:D )
6) Apply L3 VPN service for VOIP and DSLAM-MGMT, and L2 VPN for ADSL service.
But at least this last command should list on spanning tree forwarding state also the ADSL VLANs or not?
Here is the output of the show interface switchport.
View 1 Replies
View Related
Sep 16, 2012
i have configured SPAN on cisco 4900 series switches its a Loacal SPAN . as there is only commnads to complete this activity but hard luck its not working.
View 5 Replies
View Related
Mar 23, 2012
we got a dark fiber betwwen two sites away from each other 30 Km,i need to connect this sites acts as backup dc to main dc in main site using cisco 4900 Switches in BK-DC anf 6513 in the main site,how can i verfiy if this fiber oparates as L2 and i can extend vlan servers,is it via "sh cdp neigh" and "sh vlan br"?
View 2 Replies
View Related
Jul 30, 2012
When I insert the TwinGig Converter in a Catalyst 4900M you get the following error message: Failed to read transceiver serial eeprom on port Te2/1, try reinserting.This error is probably because the device expects 10Gig transceivers to be connected to the device not 1Gig.I used the TwinGig 4 module and 8 SFP ports are connected. But when i type in the the "hw-module module <slot> port-group <group> select gigabitethernet" the command is not available. [code]
View 1 Replies
View Related
Jun 17, 2012
I am having problems configuring a 4900. I have entered the following commands:
hw-module module 2 port-group 1 select gigabitethernet
hw-module module 2 port-group 2 select gigabitethernet
hw-module module 2 port-group 3 select gigabitethernet
hw-module module 2 port-group 4 select gigabitethernet
However no matter what I try, it never sees the GLC-SX gbics I have in the TwinGig converter.
PERSW001#sh interfaces status mod 2
Port Name Status Vlan Duplex Speed Type
Te2/1 inactive 1 full 10G No X2
Te2/2 inactive 1 full 10G No X2
Te2/3 inactive 1 full 10G No X2
[code]....
View 8 Replies
View Related
Jan 24, 2012
At present we are having a 4900 series switch where we are running one monitor session.Additionaly we are in need of capturing VLAN traffic and set the destination to 2 * GE ports , both are in the same switch.Due to the limitation of two monitor sessions per switch , we thought of putting the destination ports as port channel but it looks like it is not supported.
View 1 Replies
View Related
Apr 15, 2012
Actually i have problem with my connection and i would like to find that problem. i have 3 sites(1,2,3) connected together through fiber multi mode cable. The site 1 having the control room, the maximum distance between site (1 and 3) is 1.8 Km, the other distance(1 and 2) is 1.2 km and i already used 3750X switch and GIBIC GLC-FE 100Fx with support MM cable up to 2 KM.
i have in site (2 and 3) 10 cctv 3 mega pixel cameras and i check for the bandwidth is less than 100Mbps when i connected the 2 switches(2 and 3)to the switch in the site 1 there is a delay i thought maybe because of the bandwidth so i tried to connect only 1 camera but the same problem(delay). i did not make any configuration for the switches.
View 12 Replies
View Related
Feb 23, 2012
I have several autonomous 1240ag AP's that I need to enable a second ssid(Guest and VLAN2) for guest access and while I have configured the AP's according to the driections, I am not able to connect to the second ssid(Guest), but it is broadcasting. When I check the logs, I do not even see my laptop or any other device for that matter, trying to authenticate, what am I missing? I can see, connect and get an IP from the first ssid(Production and VLAN1), which is on the native VLAN and my 3COM 3C17203 switch port(14) is tagged for both VLAN's. Although I am sure that this would work better with a Catalyst switch, but it is not in my budget to replace all 4 of these, but I need this to work.
View 3 Replies
View Related
Apr 3, 2012
I am taking an introduction class to CCNA and we are focusing on the Application Layer,and I'm having some difficulty in understanding what is an Application Layer Service. Is the Application Layer Service the same as Application Layer Software?
View 3 Replies
View Related
Jul 10, 2012
I have a 1941 Cisco router with WIC-!AM-V2 card that is uning pots( regural phone ) line for data traffic.the problem I am having is the line is establishing connection but it intermittently dropos.The router is configured to dial to Centraal office and I have more that 100 other locations with the same setup that are working fine. The only differene on htis one is it is going thru a PBX line.
View 1 Replies
View Related
Jan 26, 2012
actually i have problems with the connection between a Cisco 3750 and P750 server, the Cisco Gbic is X2-10G-SR and the card of the server is 10 Gigabit Ethernet-SR PCI Express Adapter, both uses 850 nm wavelength but i cant see link between the two cards, the physical connection is with a fiber cable with a conector SC in the server and LC (cable adapter) in the switch.
View 1 Replies
View Related
May 30, 2012
I typed such commands:Code:
View 3 Replies
View Related
Jan 11, 2012
I'm adding a 2nd 3com 2920-SFP switch to our network, and was wondering how to connect them up in series(?) for more available user ports. They have 4 SFP ports, and wanted to know if this was how its done.
View 1 Replies
View Related
Apr 8, 2011
dell xps t500
View 1 Replies
View Related
