... link-level1.1
The International Organisation for Standardisation (ISO)'s Reference Model of Open System Interconnection (the ISO model) contains 7 conceptual layers: physical, link, network, transport, session, presentation, and application. For the functionality of the layers, see Comer's Internetworking with TCP/IP (Volume I) [20].
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... (CSG)2.1
A union of some U.S. universities.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... IPv42.2
IP version 4.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... RTT2.3
The minimum RTT over an entire trace. [18]
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... socket3.1
For an introduction to the Berkeley socket interface, see [20].
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
... filtering.3.2
See net/core/filter.c under the Linux kernel version 2.1.96 directory tree. A copy of this kernel version is stored on atmvectra under the directory /usr/src/kernel-source-2.1.96.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.