Ethernet Frame Length?
Jan 19, 2012I've heard that a method to optimize traffic is to use variable length packets. They say that the worst case is in minimum length packet (64 bytes). But I can't understand why.
View 2 RepliesI've heard that a method to optimize traffic is to use variable length packets. They say that the worst case is in minimum length packet (64 bytes). But I can't understand why.
View 2 RepliesI'm reading this definition in the cisco T-shoot student guide:
"Align-Err: this is the number of frames with alignment errors, which are frames that do not end with an even number of octets and have a bad cyclic redundancy check"
I don't understand what "frames that do not end with an even number of octets" actually means. Did they mean even number of bits? or does a frame's lenght need to be an even number for it to be considered valid?
Ethernet frame overhead due to encryption protocols used, and how can it be resolved?
View 1 Replies View Relatedi want to know that how can i send more than 1506Bytes in payload of ethernet frame insteadd of 1500Bytes(max size)? i have hardware device that can send variable length payload so what changes can be made for this operation
View 6 Replies View RelatedI would like to configure Ethernet jumbo frame setting in a C6509E switch with WS-X6548-GE-TX and WS-X6516A-GBIC port modules, and IOS 12.2(33)SXJ1. whether any of these modules can support jumbo ethernet frames up to 9000 per port bases.Also, if none of these modules support port-based jumbo frame MTU then would the switch allow jumbo frames on Ethernet trunks from an access switch (say a C3560)?
View 3 Replies View RelatedNetwork is 10.254.0.0/16
snag.gy/3Y8aN.jpg This is the network image.
This is my subnetted connections: http:[url]....
I can ping R2 to R5 but not R5 to R2. I have spent about 10 hours going through my network and code to no avail. I think it is the frame relay that's causing the error but not sure.. I just checked and I think R6 and R5 are not getting their OSPF updates by trying show ip route
Here are my configs: http:[url]....
I was calculating packet amount of MPEG I use byte rate to divide by 188 byte but now i want to calculate H.264 encode video what is the packet length of h.264? is it same 188byte?
View 1 Replies View RelatedI used 2 PC with gigabit NIC, use cat6 with short cable i've got speed 1000Mbps, but with longer cable(around 30meters) speed is 100Mbps. I'm looking forward to seeing from you soon.
View 1 Replies View RelatedMain site have 8 departments and each department have 60 pc's,remaining sites each have 6 departments and in each department have 40 pc's and in the design of WAN connection you use frame relays and that is the 100% growng hosptals and clock speed is 64000 bits/sec and security must don't access the unautheraised users from out side....how can I do this?
View 5 Replies View RelatedMaximum length of cat 6 lan cable between two switch
View 2 Replies View RelatedI am installing a network in my small business and was given a spool of Cat5 cable to run wires... I know the length in feet of cable that I was given, but I was wondering if there is some kind of markers on the cable to tell me how much is left... I will be charged for it by foot after I'm done, and I want to know how much I've used. Do I have to just use a measuring tape? Seems unnecessarily complicated... I've checked the wire but can't see any marker of the length remaining.
View 1 Replies View RelatedIn order to get from the coaxial jack on my wall to my cable modem I have to run about a 50 foot coaxial cable around the perimeter of the room.Will the length of this cable diminish the speed of my internet?
View 1 Replies View Relatedi need to connect modem to computer with the length of 150m. suggest which way is efficient to connect. which cable is efficient. is any medium needed in between.
View 1 Replies View RelatedThe URL field in the web access log has a length of 70 characters. Is there any way to increase is[INFO] Mon Jun 13 21:30:30 2011 Website1234567890012345678900123456789001234567890012345678900123456789001234567890 accessed from 192.168.xx.xx
View 2 Replies View Relatedmaking EEM work to show first xx lines of CPU utilization. I found when I put cli command "terminal length 13", the EEM stopped working and timed out after 20 seconds. I have tried IOS 12.4(25d) and 12.2(53) with same results. [code]
View 9 Replies View RelatedI am having real problems trying to build resiliency into a hub and spoke frame relay scenario. I know the hub is a single point of failure. Is there any way to put some resilience into the network? There is 4 attached branch offices.
View 8 Replies View RelatedI need netframe v4.0.30319 !!
View 1 Replies View Relatedwe are configuring a ras on 3925 router with e1 controller. when we connect the e1 controller to pbx we got on pbx a no frame alarm (detailed error is that we have nfas but we do not have cas). what could be the error? do the router need dsp to have a framed e1?
View 1 Replies View RelatedProvider T1 handoff with two PVCs to their MPLS cloud to a 2911.One Internet PVC and one for the MPLS including a SIP trunk .
Is there a way to use QOS to have the router prioritize one PVC over the other.Always service the MPLS/SIP PVC over the Internet ONLY PVC?The MPLS/SIP PVC will have QOS for voice but needs to be prioritize.Other option will be to police down the Internet PVC to a value which will leave the required total Kb for the voice priority KB.(FR PIPQ works if the PVC is for voice only.)
I have something I assumed but I am not sure if this wrong or not. I assume that every say 1 meter, I can send say 1 bits, so if I have 10 meters of link length, I can send 10 bits of data on that link. Do you have any argument to strongly support this assumption, preferrably a reference.
View 13 Replies View Relatedwhat length does cat6 cable support for networking
View 3 Replies View RelatedI would like to know the meaning of 'set max-parse-length 8192' on ACE.Looking at Cisco documentation I found:"you can set the maximum number of bytes to parse for generic protocols by using the set max-parse-length command in generic parameter-map configuration mode.You can set the maximum number of bytes to parse for generic protocols by using the set max-parse-length command in generic parameter-map configuration mode.' what a set max-parse-lenght is?
View 1 Replies View RelatedIs that possible to increase the pre-shared key length from 30 characters to 32?
View 3 Replies View Relatedworking through a lab and can't seem to configure frame relay on subints. I assume it's not supported but this seems basic; am I doing something wrong?
View 4 Replies View RelatedI have been trying to make rip work on this frame relay with multipoint configuration (hub and spoke) and I also configured a loopback interface on each of the routers and configured rip with the loopback address. I observed that the routers (cisco 3600 series) are not sending or receiving any RIP updates through their serial interfaces but are sending through loopback interfaces i configured (debug ip rip).I can ping all routers but cant ping their loopback interfaces because RIP updates are not sent or received by them.
R1#debug ip rip
RIP protocol debugging is on
R1#
*Mar 1 00:09:46.759: RIP: sending v2 update to 224.0.0.9 via Loopback1 (1.1.1.1)
*Mar 1 00:09:46.763: RIP: build update entries - suppressing null update
[code]....
I started studying yesterday for CCNP Route and I'm already stuck. Stupid Frame relay. Basic topology attached, 1 Hub, 2 spokes. I have EIGRP working correctly and each spoke can see all routes correctly. The Hub is on a Multipoint interface with split horizon turned off.
View 15 Replies View RelatedI've a home lab which consists of three 2610xm routers and I have configured two routers back to back with FR subinterfaces. The commands are used are;
R1
frame relay switching
int s0/0
encap FR
no sh
clock rate 64000
frame-relay intf-type dce
[code].....
Everything works great with this config and I know how to configure without lmi too. My question is more for the CCNA exam and fill the gaps in so to speak. The question is when you configure FR with static mappings and inverse arp do you need actual frame relay switches on the other side of the link or can I configure on my home labs routers. I know I am gonna try and configure this as well, but can I configure multipoint on my third router with a different physical interface. Like R1 with s0/0 to R2 s0/0 and R1 s0/1 to R3 s0/0 with subinterfaces.
I`m trying to come up with a couple of equations to determine the characteristics of residential networks.Basically, what I`ve got so far is that the bandwidth is determined by the interval in which PSACR (power sum attenuation to cross talk ratio) has a positive value.I do realize that bends in the cable will modify the impedance and thus modify the twisted pair characteristics.So, what I am looking for are the equations that would give me length and bend (corner) dependencies (for example, if I have a 130m link that has 4 corners, my link will have a bandwidth of X,attenuation of Y and max data rate of Z).
View 7 Replies View RelatedWhen you type a command in the terminal, if the command is too long is only displays the last half of it. How do I change it show it give me enough room to view the entrie command?
View 3 Replies View Relatedas we know twisted pair cat 5 has maximum length 100 meter?
is because the voltage will decrease"weak" at the receiver "because the resistance of cable"? or because the noise will increase?
what is the maximum length a cat7 cable can work for a backbone
View 2 Replies View RelatedHow much load (DATA) cat-6 cable can handle over a length of 100 meters?
View 2 Replies View RelatedI 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.
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