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what is the size of ip header?and frame header

the mtu are all the same,right?but i forget the size of the ip header and frame header

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Purple

Re: what is the size of ip header?and frame header

The MTU is actually a reference to the size of the largest network-layer datagram that can be supported by a particular link.

The IP header is usually 20 bytes but can be up to 60 bytes when non-default Options are included.

Hope that helps - pls rate the post if it does.

Paresh

2 REPLIES

Re: what is the size of ip header?and frame header

Hi Friend,

AFAIK the size of IP header is 20 bytes and the size of the ethernet frame header is 14 bytes + 4 bytes for CRC.

http://www.geocities.com/SiliconValley/Vista/8672/network/ethernet.html#A19

HTH, if yes please rate the post.

Ankur

Purple

Re: what is the size of ip header?and frame header

The MTU is actually a reference to the size of the largest network-layer datagram that can be supported by a particular link.

The IP header is usually 20 bytes but can be up to 60 bytes when non-default Options are included.

Hope that helps - pls rate the post if it does.

Paresh

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