I need to implement VSS on 6500 equipped with Sup720-10GE and WS-X6704; considering that this last 10G card doesn't support VSL, I need to realize VSS interchassis connections on Supervisor 10G interfaces, but I only have X2-10G-LR. Considering that the 2 6500 are in short distance (few meters): is it possible to use 10G long range optics and, if yes, do I need some additional patch?
View 1 RepliesI want to know the difference between the software that is Modular and the one that is not. What are the pros and cons ?
CAT6000-SUP32 IOS ADVANCED IP SERVICES SSH or CAT6000-SUP32 IOS ADVANCED IP SERVICES SSH (MODULAR)
We have a rather strange issue, and I'm not sure it's really a problem with the ACE or not. We created an HTTP parameter map called "TCPreuse" and applied it to a virtual server. A show conn detail displays "[ conn in reuse pool : FALSE]" for all connections pertaining to this virtual server. The rserver in question is Linux(Ubuntu) + Apache.Next we applied the HTTP parameter map to another virtual server - this time IIS7 + Windows Server 2008. There are plenty of entries "[ conn in reuse pool : TRUE ]" when I do a "show conn detail".What could the web servers be doing differently that would cause the connection reuse to work on one virtual server and not the other?
View 1 Replies View RelatedI am dropping a FIN packet in the server and sending the following request from the client
curl --local-port 56789 http://servername
At this point a session is created for the port no 56789.
Immediately ,(the port has not finished the transmission yet) , I am sending another request using the same port as following.
curl --local-port 56789 http://servername
Now the following error occurs .
curl: (7) bind failure: Address already in use
My question is how to reuse the same port (56789) again in this situation?
I try to make session-reuse working on an ACE-4710 Version A5(1.0) without success. Actually, I am facing the problem of the high number of backend HTTP connections that must pass through a firewall. I want to reduce this amount of open sessions with real servers by allowing the ACE to establish permament TCP connections with each rserver. However, it does not work as I expected. I still see individual TCP sessions established and closed after each GET - 200OK exchange. The parameter-map I have to enable this feature is as follows :
parameter-map type http PERF_YHA_HTTP_PARAM
persistence-rebalance
set header-maxparse-length 65535
set content-maxparse-length 65535
server-conn reuse
Note : I use PAT, on the backend, as required by the session-reuse feature
My questions are the followings :How many sessions the ACE would establish with a specific rserver ? only one ? one per TCP option set ?How much time a backend session would last if kept idle for a certain time ?What End Points must share the same TCP options to make sure session-reuse works ? Client to ACE ? ACE to rserver ? all together ?
I seem to get worse range on the DIR-655 than I did on the DIR-615. I was able to walk out to the parking lot with 1 bar of signal on my phone with the DIR-615. I can get about half way there before I have no signal now that I've got the DIR-655. Are there some settings to disable that might be playing a role in this? I've got the router configured for wireless N only, could that have something to do with it?
View 3 Replies View RelatedWe have been using a SRP521W as the main Router for an office with about 25 users.
So on the cable network it's about 25 computers, 25 IP Phones, 3 printers. Wireless network hold some smartphones and tablets. Computer traffic is 100% Remote Desktop.
That said, for the last few days network connectivity sucks. I think the problem is, precisely, the SRP521W. Some mornings the WAN link is down and can only be brought up by a router reboot.
There's an IPSec tunnel to HQ.
Wireless network was moved recently to a WAP121 to offload the SRP521W. It has two networks: internal and customers with two VLANs.
CPU Usage is around 30-45% all day and spikes to 100% sometimes. RAM Usage is 40-45%. I do not know if this is "too much", "average" or "really low load".
Anyway, time for questions:
a) How can I get a table of active connections on the firewall/NAT to see if there anything "strange" on the network traffic that maybe causing issues?
b) Is there any know bug in the VLAN handling of the SRP that maybe causing the issue? (it's one of the latests changes introduced).
c) If the problem is that there's too much load for such a small router, what replacement would you recommend given the details above? (remember I do not really need wireless on the router as I have the wap121).
My internet connect works fine for hours at a time, then suddenly will get 7 or 8 General Failures while pinging (long enough to boot me off the net) then will be back to working fine immediately afterwards.Pinging 127.0.0.1 works fine. I've checked the firewall (Norton) and it has the default settings
View 3 Replies View RelatedWhat's the difference between Long and Short Preamble and when to use each of them?
View 3 Replies View RelatedI'm having a problem with my router a Dlink DIR-655. I know its the router because if I direct connect from my cable modem the problem does not exist. What happens is I start downloading/streaming something it will start and then just stop prematurely causing me to restart it to get it too finish. For example on youtube, I start loading a video it loads normally for 2 mins of video and then will stop. I can get it to restart if I swap video quality and then it just does same thing. Loads around 2 mins of video then stops loading.
I have tried switching browsers, and I changed my MTU size from 1500 to 1300.My motherboard is a GA-P67A-UD4-B3 if that matters. I have the latest firmware on my router.
I have a Cisco WISM2 installed on Cisco cat 6509, with 39 indoor (3502i) and 14 outdoor (1310G) Access point, so the problem i am facing is that, the controller recognizes all AP and they are all configured and working well, then the signal of the outdoors (1300) its broadcast in a very short length like 60 meters, and i don't understand this is likely having a problem with a controller software version or ... being at 3m, my card does not show excellent signal strength and yet with the indoor thing are Ok.
View 4 Replies View RelatedI am using the 26 character WEP code. Was wondering if it's possible to setup a short password or PIN number. Been troubleshooting problems with a wireless blue ray player that has required multiple resets. Entering the wep code with the remote is hard!
View 5 Replies View RelatedI got a CISCO wap4410n access point and it is disconnecting uses after a shorl while. I hv to again connect them manually.
View 1 Replies View RelatedSo, I just upgraded my mobo/cpu (Z77A-G45 and i5-2500k) and I'm having an issue with my connection as it seems to drop every 5 to 15 minutes constantly and have no idea what exactly is wrongThe kicker is my old mobo did the same thing and I had to do something in win7 to fix it (not sure if it was the drivers or what) but I just can't remember what exactly.
View 1 Replies View RelatedJust got a WAG120N modem/router , everything is set up and works fine.But I am very disappointed with its wifi range.After using an iPhone and a PSP , I found that, its range is 1,80 meters only, in empty room.Is it faulty ? I cant believe its range is too short although I know that its not "enhanced speed & range" as typed on box.I tried all combination of channels/protocols with no success and it's already flashed on latest version. I really cant connect to my wifi devices.
View 2 Replies View RelatedI bought an E4200 to replace an old buffalio Nfinity. The range on the 2.4 and 5 GHz have both been extremely short -- shorter than the old Buffalo. 1 meter from the router, I get five bars on the laptop and 3 bars on ipad. 3 meters away with direct line of sight, the laptop dips to 4 bars. Down the hallway about 4-5 meters away, the 2.4GHz is one 1 bar on laptop and ipad. the 5GHz is gone. This is two rooms away from the router in my apartment. Isn't that a bit shocking in terms of performance? A webcam that is two rooms away registers a 6% signal from the E4200.Does this sound like faulty hardware, e.g. bad antennae? I would think it is something about the build of my apartment building, but my old buffalo did MUCH better than the E4200. two Ipad bars where the E4200 has one...and in very unstable condition.
View 9 Replies View RelatedThere is a problem with establishing an internet connection between my laptop and any wireless network, and hence the internet cannot be accessed. Though, the connection can be established locally between my laptop and the wireless network for a short while before the connection is lost locally. There is certainly no problem with my current wireless router as there are internet connections between the wireless network and other devices. Prior to using the current wireless router, I used Linksys WRT54G for internet connection until recently when there was no connection between all devices and the Linksys wireless router, so I changed my wireless router to the current one. However, the problem still persists for my laptop. I can only get access to internet when my laptop is connected to the router using ethernet cable, as well as when my laptop is connected to the main cable modem using the same cable.My laptop model is Fujitsu Lifebook S Series and my laptop is running on Windows Vista Service Pack 2 and my current wireless router is Belkin N300 Wireless N Router Model F9K1002v1.What I have done so far are that I have ensured that the DNS client and DHCP client service are enabled and that I have used the method of "/release, /dnsflush and /renew" on the command prompt.Below is the /ipconfig /all description when this laptop is connected to the cable modem using ethernet cable:
Windows IP Configuration
Host Name . . . . . . . . . . . . : FujitsuUser-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
[code]....
Region : USA
Model : TL-WR740N
Hardware Version : V4.20.0
Firmware Version :
ISP :
Region : UnitedStates
Model : TL-WR740N
Hardware Version : V4.20.0
Firmware Version : 3.16.5 Build 130322 Rel.59120n
ISP :
Even before I did the latest firmware flash I couldn't select short GI under Advanced Wireless - it was simply greyed out even though WMM was enabled above it. Now after a factory reset and recreating all my settings I still can't select it.
One of my customer has raised a new requirement for implementation of short sequence number format support in PPP multilink header for Cisco MWR 2941 E1/T1 serial interface, whereas router is supporting long sequence number format.here is the output of "debug ppp negotiation" command:-Currently in the MWR debugging logs we can see that by default MWR is sending long sequence header format as below
*Mar 13 01:32:55.438: Se0/2:0 LCP: O CONFREQ [REQsent] id 238 len 25
*Mar 13 01:32:55.438: Se0/2:0 LCP: MagicNumber 0x26CDF693 (0x050626CDF693)
*Mar 13 01:32:55.438: Se0/2:0 LCP: MRRU 1500 (0x110405DC)
*Mar 13 01:32:55.438: Se0/2:0 LCP: EndpointDisc 2 16.16.16.11 (0x1307021010100B)
*Mar 13 01:32:55.438: Se0/2:0 LCP: MultilinkHdrFmt seq long classes 2 (0x1B040202)
While as per the requirement PPP multilink header should support short sequence.
MWR configuration:
controller E1 0/2
framing NO-CRC4
clock source line
channel-group 0 timeslots 1-31
[code]....
ISP: RCN Type: Cable Security: None, had Microsoft Security Essentials running but uninstalled that to see if it was causing an error. Basic Windows Firewall is enabled (although have tested without)
The problem I'm having is the internet on my HP Pavilion Elite HPE-580t PC will drop for these short 10-30 second bursts. After the drop it will automatically start working again. This happens with all programs I'm running on the computer. The odd thing is that it's in a way random. Sometimes I won't get these drops for 30 minutes but then I'll get them every couple minutes.
I've been trying to pinpoint the problem but haven't come up with anything. I tried plugging the computer directly into the cable modem and still had a problem (which I assume ruled out the router as a problem). It also would seem to rule out this being strictly a wireless issue. I removed antivirus (Microsoft Security Essentials) and have tweaked with turning off the firewall completely. I've tweaked the power saving settings to make sure the adapters are not turning off. Even went as far as blanking the hard drive and re-installing the factory settings.
It's worth noting that I have no problems with other devices online. I have a laptop (uses XP) that uses both wireless and a direct connection to the router without issues. An iPad and Xbox 360 has had no drops when in use. This issue only happens with the desktop. The only difference in this device is it uses Windows 7.It doesn't appear to be the ISP (unless there is something they would do to cause issues with Windows 7) and the issue happens regardless of the router being used or not. It doesn't appear to be the wireless card since it still had issues plugged in. So I feel like it has to be either some setting on Windows 7 or some other hardware issue (Motherboard?).
how much distance can we have VSL,
I have 2 x 6509 serving as redundant switches and now i plan to upgrade to VSS, but both switch are 2KM away from each other.
What is the longest distance for a cat 6 cable?
View 1 Replies View Relatedwhat is the distance a router will work?
View 2 Replies View RelatedI want to make a wireless connection between me and my friend,and the distance between us is about 1K . How can I do that ?
View 5 Replies View RelatedI am currently trying to find the method or mechanism for calculating the distance between two wireless mobile nodes.Let's say, there are 2 nodes (node B and C) coming in communication with node A. How can node A knows whether node B or node C is nearer than the other? Is it possible to find it out by using RSSI? or are there any other mechanisms to calculate the distance?
View 1 Replies View RelatedIs there an association between fiber type, wavelength and distance? I mean are there single-mode fiber cables, which are more suited for 1550nm wavelength and have poor performance when wavelength is for example 1310nm? Are there fiber cables which support only some narrow wavelength range? In addition, how is such behavior called in physics?
View 1 Replies View Relatedis the aironet 1262 access point a good choice for an environment of about 20 users. each users is in an office and we are looking at deploying the ap at the end of the hall on a wall mount. would distance be a barrier and are there any better options out there?
View 3 Replies View RelatedI have been searching online for the maximum coverage (distance) of WAP4410N
View 1 Replies View RelatedLooking to link up to 6513 chassis via 6704 10 gig cards.
I have a 6513 on the 8th floor and one on the 3rd floor in same building. Distance would be approx 150' max. New 10 gig cabling was installed between these floors.
I would like to use 2 10 gig ints on each 6704 to form a port channel (LACP) between the 2 environments.
So far I have been unable to get the links up between 6704's.
What is the maximum theoretical distance with air-cap3602i-a-k9 with internal antenna?
View 5 Replies View RelatedWhat is the average/maximum distance coverable by Aironet 1300 and 1240AG ???
View 3 Replies View RelatedI have an old White BT router (from the UK)
Also a 60m ethernet cable. It won't send a signal far enough to be picked up by an ethernet port on another computer at that distance via cable.
However, a modern Zyxel Router will chuck it through that length of cable OK
way to get the BT router (v1 or 1.5) to do this ?
I have an old White BT router (from the UK)
Also a 60m ethernet cable. It won't send a signal far enough to be picked up by an ethernet port on another computer at that distance via cable.
However, a modern Zyxel Router will chuck it through that length of cable OK
is there a way to get the BT router (v1 or 1.5) to do this ?