The LSRefreshtime is 30 minutes in OSPF as per rfc 2328, So the router LSA will start after this time(30 minutes). By using router lsa only the Link State Database will be updated. Suppose the datatransmission is started when it(router) is switched on. by using Link State Database only the routing table will be updated.
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Isn't there a way to increase the TTL of an OSPF Hello packet or am I thinking of a different protocol? Or is it only with virtual links? I can't seem to find it in my ROUTE cert book or on the Intarwebz outside of setting TTL security, but I could have sworn I remembered configuring something like this in my ROUTE lab book that I unfortunately do not have at work.
View 8 Replies View RelatedThe coaxial"or any other metal cable" was using for transmission signals(before fiber optic) the coaxial need repeater every 2 or 3 Kilo meter,because the signal will be attenuation when pass through the cable,when we transmission electricity to far places ,we use transformer to rising the voltage to 10000 or 100000 volt
View 8 Replies View RelatedI have 2 ASBR routers, AGFR01RTR03 and AGFR02RTR03, performing OSPF to OSPF redistribution in both ways for the same ***. They also do summarization for our private addressing scheme. It is all working just fine for that part (neighbors, summarization, redistribution).
AGDC01RTR01 --- AGDC02RTR01 (OSPF 1000 ABRs)
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AGFR01RTR03 --- AGFR02RTR03 (OSPF 1000 / 53 ASBRs)
Let's focus on AGDC01RTR01 with a specific entry here (IP subnet is fake) :
Routing entry for 1.1.1.0/25
Known via "ospf 1000", distance 110, metric 300, type inter area
Last update from 10.2.244.76 on GigabitEthernet5/1, 1d03h ago
Routing Descriptor Blocks:
* 10.2.244.76, from 10.2.1.249, 1d03h ago, via GigabitEthernet5/1
Route metric is 300, traffic share count is 1
[code]...
Currently the OSPF network consist of 2 segment route via static route.One is AREA 0 and another AREA 10.Both network are seperate entity, only static route to route between 2 networks.But the static route do not provide the dynamically and flexibility, I plan to run routing between 2 networks via VLAN160 and VLAN162.
I still want to manitnace it was 2 different OSPFrouting domain.Can I run OSPF with differrent OSPF porcess ID?
I am running IPv4 with OSPFv2 currently. However, I planed to deploy IPv6 in my network. Is it possible to deploy V6 with OSPFv3 without affecting current network traffic in V4?
View 7 Replies View Relatedhere is my setup:
Router: DIR-655 B1 2.00NA
Desktop1: DWA-160 A1 1.80 [IP: x.x.x.104]
Desktop2: DWA-160 A1 1.80 [IP: x.x.x.103]
Laptop: Intel WiFi 5300 AGN [IP: x.x.x.100]
iPad 2 (1): [IP: x.x.x.101]
iPad 2 (2):
Router Config, Status, and Inssider Report:
[URL]
I would like to connect my 1841 to the equipment that has RS-422 interface in order to transmit data. I have to buy one WIC-1T to support it. However, I am not sure that this module will be able to support RS-422 or not (As I can see there is DB25 which is the interface of RS-422, but I realize that RS-232 also has 25 pins.)
View 3 Replies View Related560km long pipeline, intermediate station at every 30 or 40 kms. Couple of Ip phones, 2 or 3 IP camera, and few control signls (IP system) will be connected at every stations. Do not expect heavy data. Which one may be the prefered economical solution can I use
1. Ethernet network (Switch with Optical SFP ports at every site)
2. SDH equipment at every site
3. DWDM equipment (if so lower end)
What is the maximum operating range (distance) allowed to maintain the full transmission speed?
View 4 Replies View RelatedI recently bought the Dlink DIR-655 router and I have a Dlink DNS 323 nas. I have them connected and working. When I send data from my PC to the DNS 323, i'm doing about 6MB/s. when I'm sending data from DNS 323 to my PC, i'm doing about 30MB/s. all 3 devices have the 1000 Mbps enabled and Jumbo frames is enabled on the DNS 323 and my PC. is this normal?
View 14 Replies View Relatedi have a 5500 series WLC connected to a switch through a trunk port with 2 v WLClans. the connection works fine, but sometimes it loses connectivity. it works again rebooting the wlc.
When the problem presented, i checked the cpd neighbors on switch and it didn't show the wlc, and i checked the cdp neighbors on WLC and this shows the switch in its neighbors list. i also checked the port counters on WLC and the receiver counters keep increasing, but the transmission counters remains in the same value. then i can see that only the TX side on the controller is down, if i restart the WLC the problem disappear temporarily.
Is there a misconfiguration or a wlc bug related to this behavior?
The switch is a Catalyst 3560
The WLC controller code is 6.0.188.0
I 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 have a server running sbs essentials and a system running windows 7 pro, but i cant get win7 pro to join the domain on the server, i get the following message - "An attempt to resolve the DNS name of a DC in the domain being joined has failed". I need to enter the domain controller i.p as the dns on the windows 7 machine ? is this true ? if so how do I find out the domain controller i.p,
View 1 Replies View RelatedI am trying to lower the transmission power on my WAG160N. I thought it should be an option in my advanced wireless settings of the web based setup page, however there is only transmission rate, n transmission rate and cts protection mode.
View 1 Replies View RelatedFor an N300 model F9K1002V4 router, how can I tell if it's transmitting in N mode? I have two newer laptops that are capable of receiving the 802.11N signal but are only receiving at 54mbps. The router is set to transmit at b/g/n rates.
View 7 Replies View Relatedmy neighbors cant pick up my signal unless they are outside. can i boost the signal from my router?
View 1 Replies View RelatedIs is possible to run Transmission or Google Chrome only using OpenVPN? Other applications should use default connection (eth0) since I am connected to Intranet which won't be accessible if all traffic is routed through VPN. I am using Ubuntu 12.10 and some Premium VPN server (similar to HMS VPN)
View 1 Replies View RelatedI have had trouble to verify the support wireless speed and band that CISCO891W-AGN-A-K9 supports. I saw on a vendor website that it supports a max wireless transmission speed of 54Mbps but this seems low for what is supposed to be the current model wireless router which is supports 802.11n. What the maximum supported wireless speed and whether 5Ghz is supported? Plus I am thinking about purchasing it for my home wireless network (upgrading from an 871W).
View 1 Replies View RelatedI've got an AIR-AP1142N-E-K9 access point, i've got the Radio0-802.11n(2.4ghz) enabled and the 5.0ghz disabled.
i've got my client real close to the AP and i only get a connection speed of 72Mbs.
Shouldn't i get 150mbs? Maybe some wrong configuration?
I have a question concerning the Internet LED Status Indicator. The manual states "A solid light indicates connection on the Internet port. This LED blinks on data transmission".My router seems to be working fine but the Internet LED on my 615 is blinking orange.Reason??
View 3 Replies View Related1. Does Linksys WAG320N support USB printer? Can I connect a printer to USB-port and send some text to print from notebook via wi-fi?
2. The fact is that I have a cheap, simple chinese WiFi-ADSL-modem ZTE, which has 3 modes - low / medium / high for WI-FI signal. So, the signal is transmitted by ZTE at LOW-level is equivalent to signal, which now sends my WAG320N. When I turn ZTE on high-level, then the range of wi-fi signal increases much, comparing with the range given by WAG320N. So, where can I turn on high-mode in my WAG320N?
I'm trying to modify the power transmission control of multiple Lightweight Access Points (1131 AG E K9) at one single time on WLC 4400 or WCS.It is effectively possible to configure the power transmission per LAP and in global on WLC 4400 but i need to configure it per group of LAPs =i.e group X of 10 LAPs will have a power Threshold of X -dBm and group Y of 15 LAPs with Y -dBm.
View 3 Replies View RelatedI have had a DIR-655 for years, and this is a treat - channeling everything from IPTV, to a fast fiber connection, transfers - no sweats.
Then I had to setup a router for a friend, and recommended the DIR-615.
Setup the router, and max it would connect with was 150mb - I changed the settings accordingly: auto channel scan channel width: auto 20/40mhz
So this "opened" up the 300mb speed - however only for 5 mins, then it falls down to 150mb.
My laptop (lenovo) connects to the dir-655 just fine at full speed, and this is also the machine I used for testing the dir-615.
It's ax Hx firmware, FW: 8.04
What I can conclude by using inssider, and xirrus wifi inspector is that it generates 2 channels - and then after 5mins of connectivity looses a channel, and then the speed drops.
I got a new router from the dealer, same issue. Then a friend of mine lent me an ancient dir-615, and interestingly enough this had the same configuration option of "Transmission rate" in the wireless settings page! Just like the dir-655. and also connects at 300mb...
If I send video file(overall bit rate is 17.5Mbps) to client with 2.4Ghz band, it always freezes and go repeatedly around 1 second interval. the distance around 10m away without any wall, open space actually.
But same condition with above, cheaper wireless router no problem at all. It happens only with EA4500. And there are no any parameters setting menu actually.
the only way i can get 300mbps from this router is by having these settings, it seems the only valid settings to get 300mbps from the router are the following:
Network Mode: mixed
Channel Width: auto (20mhz or 40mhz)
Channel : 1
if i leave the channel to auto it won't show up as 300.on top of that it doesn't want to stay at 300mbps for very long, sometimes its max rate in inSSDer is only 144 or 156mbps. its the weirdest thing, i think this version of the firmware seems to forget to check for how fast its wireless transmit speed is.When it reboots it only transmits at 144 or 156mbps. i have to go in the basic wireless page and just save the settings to reset it to 300, i don't even have to change anything, it resets its max rated speed back up to 300mbps.and more importantly, are the devs aware of this problem for the e1200 v2 ?
I have been disappointed by the range of the EA4500 compared to previous routers, but I am most puzzled by it's behavior. I may get an "excellent" connection close to the router (one room away) and speeds up to 65 Mps, but after a few minutes of surfing the web the signal strength and speed can drop substantially.
The problem is the worst at a distance (one floor down in our house, maybe 30 feet away in total) where the signal strength may start at "good" and a speed of perhaps 30 Mps, but then after 3-4 minutes drops to "poor" and maybe 5 Mps.
why a subnet wouldn't be passed on to just one participating OSPF device?
I have two routers and an ASA, all of which are in area 0, it's a pretty simple config. The two routers are connected to some other devices (also in area 0) that pass of an external route to a particular subnet, let's call it 192.168.4.0. The routers are getting it just fine, but the ASA is not:
What if i run ospf in all of the routers in network diagram ? does it caus loops ? if so how to prevent it ?
View 8 Replies View RelatedI will be provided with /29 public IP address from my ISP. The idea is to run OSPF between ISP and my ASAs over private IPs so /29 is presented to ASA. This is because I will be using 5 out 6 available IPs on my ASA so I cannot use them on the routers.I need to run HA in Active/Standby mode on ASA, terminate site-to-site and remote access VPNs on ASA, and use static NAT for kit in DMZ network I am trying to figure out how to present this public IP range on ASA. Should I create two subinterfaces on physical interface towards OSPF area and assigned private IP address on one of them for OSPF and public IP on another and then setup a failover on each subinterface.
View 4 Replies View RelatedI'm trying to run an OSPF protocol over an ATM connection:
192.168.80.0 |----10.0.0.1-----------10.0.0.2----| 192.168.50.0
how would u link(or in other word route) different OSPF process ID? i have OSPF 1 and OSPF 2 and i want them to see each others networks...how can i accomplish this ?
View 7 Replies View Relatedimplement backup WAN links to complement the metro Ethernet links we currently use so we have some redundancy. These will most likely be a VPN over an Internet service but might be another Ethernet type service, the medium shouldn't really matter I wouldn't think. What I am looking for input on is what is the best way to implement this? Would I just set costs so that the backup is only used when the primary goes down, or should I create new OSPF area for the backup links?
Currently the core switches that are also our routers are 3750G stacks running ip services. We are getting ready to install new firewalls at each location that will become the gateways for the vlans currently on the core switches to give us much more control over segmentation, and because of this I am thinking that it may make sense to then move the OSPF instance from the core to the firewalls. In the drawing I did not show the access layer switches off of the core, and the MOE circuits actually terminate into a 3550-12T switch before the core. I think I will actually eliminate those 3550-12T switches and go straight into the core. This is a current state drawing, so does not include the backup links I am planning.
