Cisco Switching/Routing :: 2911 Versus Linksys EA4500 At Home (Fiber)
Sep 8, 2012
At home we have a business Fiber line with 100/100 connection, right now connected to a Cisco 2911 Router.Problem with this one is that it doesnt give the cool neat config options you get on for example the new EA routers, nor does it support uPNP. Now I was wondering if it would be an idea to use the EA4500 (which i have here aswell, though atm not in use) instead of the 2911.does the 2911 offer that much more power and speed that it would be unwise to use a EA4500 on Fiber?
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Jun 18, 2012
Does the CPU speed make any difference?I'm reading that the Asus offers great Wifi Coverage - which is nice cause both the wife and myself use the laptops a fair bit.. However - most of my devices are currently on a wired setup..through a belkin 1gbit powerline setup.I run a NAS for storage - a separate machine for media serving, 2x ps3s for media streaming a seagate HD+ media player + a sonos bridge and my desktop on the wired setup..As for wireless normally I'd have 3 Androids along with 2 laptops & 5 sonos players...
[code]....
I might have been talking rubbish there - I was sure I'd read somewhere that the Asus unit had a whopping 1gb ram installed vs. the 256mb of the Linksys/Cisco ea4500 - however looking at the specs again, both read @256mb.
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May 18, 2012
The EA4500 web-settings application asks for a username and password. The username is "admin" and the password is my long (60 character) wpa key. I see where I can change the password but it says I'll lose all wireless connections. This doesn't make sense to me. I would think the router administration username and password are completely separate from the ssid and wpa key. This was the case with my earlier LinkSys router. I'd like a router administration username to be something other than the generic "admin" and a password that is easier than my long wpa key. I want a separate ssid and wpa key (what I currently have).
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Feb 22, 2012
I need some fiber to run between a Cisco Nexus and an IBM server with Intel NIC. It's 30meters, and LC-LC connectors.What is the difference between 62.5/125 vs 50/125?
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Oct 23, 2012
I want to connect two linksys SRW2048 through fiber optic.. it's located different rooms with fiber optic....Is it possible through VALN....This setup using for CCTV connectivity?
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Dec 9, 2011
some of our switches have the switchport mode trunk command configured between the 3750 switches but other 3750 switches connected to our 6509 core switch do not have the switchport mode trunk command to permit Vlans from going across the swtiches instead it has an ip address and says no switchport what is the difference between does two. Is trunking used only for Layer 2 and L3 is used to route interface vlans?
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Jan 24, 2013
For intervlan routing, Is 'IP routing' command enabled by default on a 6500 series switches based on the IOS?and on 3750 switches, do we need to enable the "ip routing" command manually for intervlan routing?
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Feb 14, 2012
I own a Cisco 892W router. The router has 2 WAN ports and 8 switch ports. Now I know -
-WAN ports can create sub interfaces, assigne IPs, cannot be assigned to a VLAN - sounds very much like a routing port. (sh interface gives - Hardware is PQII_PRO_UEC)
-Switch ports are for VLAN assignment, trunking, IP assigment etc,. (sh interface gives Hardware is Fast Ethernet)
I know they are different but at the same time confuced what the difference are? I also know on some 3xxx series switchs you could say "no switchport" and translate a switch port to a layer 3 port. But on 892W you can't do this? Struggeling to understand the difference.
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Jan 25, 2013
What is the difference between the Diameter and the Max Hops Remaining in RSTP/MSTP? Like Cisco, the maximun value for diameter is 7, but, can i have a ring topology with 10 switches in the Network?
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Jun 6, 2012
I am trying to improve the coverage of my home network.I have Fios, and with the existing Wireless capabilities, there are several dead and low coverage areas in my house. This is due to a combination of where my router is (Limited by input feed) and the confuration of the house.
I have CAT-5 running to most rooms, so adding wired devices is not an issue. I went out and picked up an EA4500 router, and my plan was to convert my Fios Router to a bridge and use the EA4500 as the DHCP server. However, even with this router, my coverage is not improved. My preferred solution will be to get 1 or 2 additional access points that I can plug into my wired network, however, I would want to have a common SSID for the entire network.
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May 16, 2013
We replaced a 3560 with a new 2960S and I'm only able to configure a single ip sla where before we had three ip sla entries on the 3560. Obviously, one is a L2 switch and the other a L3 switch. This is an expected difference between switches, correct?
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May 6, 2013
What is the preferred access switch for new deployment. Choosing between 3850 and 3750x. I have to say that the 3850 wireless features will not be used in this deployment and 4 switch for stack is enough... Looked and read everything that I found in the press, I can not make an informed choice. I bow to 3850, but I was apprehensive following circumstances:1) not too positive reviews2) to long list of open caveats3) to long list of features are not supported in Cisco IOS XE Release 3.2.0SE4) IOS XE : (With regard to the first three points - yes, I understand that the product is new and it has not gone further stage of "childhood diseases" ...Regarding the fourth point - I understand correctly that this is the direction to be moving Cisco Systems and soon all products migrate from classical IOS to IOS XE and so on?
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Jul 10, 2012
On a csico 3750 switch I have ntp server < IP of stratum 1 Time Server> I want the swit to sync to the to time server and provide time to peers on my network. Do I have to be configured for ntp peer < IP of stratum 1 Time Server> for that to work?
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Mar 11, 2012
Cisco Safe harbor, I came nto know this can be a replacement for Sup 720.
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Oct 29, 2012
I see the throughput of a ISR is 296.96 Mbps how would this compare to a 3560 if the figure is 38.7Mpps?
What would the throughput of a 3560 be in Mbps?
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Feb 13, 2013
I manage a network with a ghost server, a 3750G, several outside access, and some vlans.This is a very simplify view of this network:
The ghost server is on all vlans connected to a trunk port on the 3750G which is used as a central switch and for basic routing.All equipements connected to vlans 1, 2 or 3 are on 2950 switchs themselves connected to the 3750G on dedicated access ports, each in there respective vlans.
All equipements connected to vlans 1, 2 or 3 have as gateway a vlan interface on the 3750. (10.0.x.3)All the vlan interfaces have route-maps applied on them to redirect traffic to their dedicated outside access.The route-maps match only traffic destinated to the outside.
Everthing is working well but the multicast.When I create a ghost session on the server, I can see computer connecting on it, but the multicast never start.If I use directed broadcast it works with good perfs, but the CPU processes of the 3750 go high because of the IP Input (Till 99%).If I remove the route map from the vlan interface which is on the ghosted network, the multicast works but with poor perfs.If I shutdown the vlan interface the multicast works well with good perfs.
It seems my problems are tied with the Vlan interfaces but I don't know why.
This is a sample of the config:
switch 1 provision ws-c3750g-24ts-1u
system mtu routing 1500
vtp domain SM
vtp mode transparent
ip routing
[code]....
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Mar 11, 2012
I encountered a problem migrating configuration from Cisco 4500 with IOS 12.2(53)SG4 to Cisco 6500-VSS with IOS 12.2(33)SXI7.
With 4500, we had 2 servers with JBoss running multicast to build up the cluster. They used 239.X.X.X multicast IP. There was no need to configure "ip igmp snooping vlan XX static XXXX.XXXX.XXXX interface X" neither static arp entry.
When we migrated to 6500 in VSS, we had to do:
mac-address-table static XXXX.XXXX.XXXX vlan XX interface X disable-snooping
With this command, the JBoss cluster worked well. The question is, ¿Is there any difference regarding IGMP in 4500 versus 6500?
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Jun 3, 2013
I have a network coming up for a switch refresh. Management is pushing for 2960s and I would like 3850s. We are running Cisco Voice and Video over the network. I saw a few things that seemed to be in favor of a Layer 3 switch vs. a Layer 2 switch. Some items like better performance due to switching based on IP vs. switching based on MAC. Some information that will show the 3850 to be a better choice or that the 2960 is capable.
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May 23, 2012
Someone had told me the 6500 switches can be stacked via fiber. This feature is available for the 3750s?
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Jul 10, 2012
Can I use the SFP-10G-SR 10g interface woth Multi - Mode fiber?
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Dec 24, 2011
We have Three locations (A,B,C) across campus. Location A is Main Location, While B & C are remote locations. Distance among all locations approx. 2 miles.
I want 10G Fiber among these three locations. I am taking 4510+E with SUP 7E with Redundant SUP & 10G Fiber line card(X2 10G) at Location A.At Location B & C, i need Max. 2 Nos. of 10G uplink. i am taking 4507r+E with redundant SUP 7LE. Can i terminate 10G Fiber UPLINK from Location A in to Redundant SUP 7L-E(10G SFP+) at location B & C ??
At one time, Primary SUP 10G uplink should be active & Redundant SUP 10G uplink should be standby. When primary SUP fail, redundant SUP 10G uplink will be active. Is that Possible with this scenario?Is that possible that at same time, 10G Uplink on both SUP 7L-E be Active?
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Feb 6, 2013
What's the difference between a Catalyst 4500 and a Catalyst 4500E series chassis? I believe it has to to do with supporting PoE+? Are the blades in both series interchangeable?
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Mar 17, 2013
I want to configure accesslists on my Catalyst 3750X-switches to protect different VLANs/networks. Any best-practices about inbound versus outbound accesslists? In my head it is more readable and easier to understand the config when accesslists are assigned outbound on the VLAN to protect instead of assigning them inbound on all possible source-VLANs. But of course, from a performance point-of-view it is better to use inbound access-lists to avoid un-necessary routing etc.
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Apr 2, 2013
I am trying find out what the nominal power draw is for the following switch. The installation manual and data sheets says that the power draw for the units are 15.1W and 15.7W maximum at 18VDC. I am trying to use the switch for a solar application (12VDC) and would like to find out what the nominal draw would be when the device is in standby or if all of the ethernet ports are unused. I plan to use the two fiber SFP's and one copper port.
IE-3000-4TC
IE-3000-8TC
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Oct 20, 2012
When you aggregate multiple fiber GBICs together on the 3508G, do you configure it as an etherchannel, or as fibre-channel? I've looked around online for hours, but can't find it mentioned anywhere.
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Sep 2, 2012
I am trying to connect a 6509 switch to a 4503-E switch using single mode dark fiber over a distance of less than half a mile. Although a routine task, it does not work..We have a care 6509 switch where we concentrate all of our dark fiber connections for our remote sites. The 6509 switch already has 30 remote sites, most of them with 4503-E switches, connected in this way therefore it is a tested scenario. For the connections we use the GLC-LH-SM SFPs on both switches. Out of these 30 sites we had a similar problem with two of them, which we solved with the use of CWDM SFPs. With the CWDMs the fiber came up right away. However, I cannot keep using this solution because it is way too expensive! I had the losses of the fiber measured end-to-end and they are negligible (>0.5 dB).
In this latest case, like I said, we could not bring the connection up between the core 6509 switch and the 4503-E switch using the GLC-LH-SM SFPs. I then replaced the 4503-E switch with a 3560 and the link came up! Then I tried using a CWDM-SFP in the 4503-E, while keeping the GLC-LH-SM SFP in the 6509 and the link came alive again! Of course we already tried replacing the fiber patch cords with no luck. [code] I find it very weird for the link to work with the 3560 or with a CWDM in the 4503 but NOT with the SFP in the 4503!
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Mar 22, 2012
Company I work for just moved into a new location. We have two data closets which are patched as independent entities, with no Ethernet tie connection. These closets are roughly 100 feet apart.
There is a fiber connection that runs between both closets, that the previous tenant used to connect the switches. I have placed a Cisco 2960 switch in each location, and added one mini SFP gbic's to each switch. After attaching both sides, neither light up. I do a sh inter gig1/0/49 on each and shows 'down down' (not admin down).
What is the trick on getting these to communciate, do I need to configure these ports, and are they supposed to light up?
What I am trying to accomplish is to get the one closet that is completely cut off, communicating by logically stacking, or 'daisy chaining' via fiber.
I turned off the lights and popped the fiber out, and I do see a faint red light (I did not look straight into it), so I think the fiber is active.
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Apr 29, 2013
I am working on a project to connect 2 switch stacks via 10 Gb fiber. I am told that the 3750Xs do not natively receive the 10 GB SFPs. What part numbers do i need to order to make this work? Is there any IOS image requirements?
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Feb 7, 2012
I need to interface an ASR1002 to an ONS-14454 via multimode fiber The ASR1002 will use the 1000Base SFP-GE-S SFP module in one of the built-in Ethernet ports (in 1 of the four ports) The ONS-14454 will use 10/100/1000Base ONS-SI-GE-SX SFP in the Ethernet expansion blade.
Cisco docs indicate each module is supported in specific ASR and ONS but does not indicate interfacing between the two. If these two modules will communicate without error via multimode fiber?
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May 23, 2012
Using SFP-10G-LRM with single mode fiber? We have 1310nm.
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Sep 4, 2012
I have a c3560 switch that has two gig fiber modules in it. I need to uplink fiber to one of these at 100mb. This is because this port will be rate limited to 20mb and 10 percent is the lowest you can go with the rate limiting command. Is there a 100mb fiber module i can insert in the 3560
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Nov 3, 2011
I have three switches:
primary - Cisco Catalyst 3750G-24TS-24
and two SG300-28
I need to apply uplinks as follows:
3750G-24TS-24 SFP (1) -> SG300-28 (first) mini-GBIC (1)3750G-24TS-24 SFP (2) -> SG300-28 (second) mini-GBIC (1)SG300-28 (first) mini-GBIC (2) -> SG300-28 (second) mini-GBIC (2)
I would like to know, What type of mini-GBIC and SFP and cable I should use for SX Multimode?What max speed rate I will get?
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Mar 7, 2012
I have an old Cisco 3500XL I am using for my home lab, but was wondering can I use the fiber ports to connect to my PC. I have to correct NIC interfaces but no link indication. I did make sure the port was no down, but sill not link.
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