Home > Cisco, Routing > ATM


– performs no error checking
– has no sequence numbers
– has exactly same frame size for every packet sent (53 bytes = 48 bytes data, 5bytes header)
– may occasionally be called “cell relay”
– integrates well with other network types
– used by 80% of SP for core
– is very fast

RFC 2684, 2225 (multiprotocol encapsulation over ATM adaptation Layer 5, classical IP)
– basic encapsulation
– allows for pvcs, svcs
– allows dynamic VPI/VCI configuration
– SP uses ILMI (interim LMI) to communicate PVC information

# sample config
int ATM0/1
ip address
atm pvc 56 0 115 aal5snap (Name, VPI, VCI, locally significant) 56 = unique id (i.e. R5toR6); aal5snap = classic IP

ATM is the base of MPLS development

Categories: Cisco, Routing
  1. No comments yet.
  1. No trackbacks yet.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

%d bloggers like this: