Manual

Layer 2 Tunnel Protocol Version 3
cell-packing
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Cisco IOS Releases 12.0(29)S and 12.2(25)S
• The number of packed cells need not match between the PE routers. The two PE routers agree on
the lower of the two values. For example, if PE1 is allowed to pack 10 cells per MPLS or L2TPv3
packet and PE2 is allowed to pack 20 cells per MPLS or L2TPv3 packet, the two PE routers would
agree to send no more than 10 cells per packet.
• If the number of cells packed by the peer PE router exceeds the limit, the packet is dropped.
• If you issue the cell-packing command without first specifying the atm mcpt-timers command, you
get the following error:
Please set mcpt values first
Examples The following example shows cell packing enabled on an interface set up for VP mode. The cell-packing
command specifies that 10 ATM cells be packed into each MPLS packet. The command also specifies
that the second MCPT timer be used.
int atm 1/0
atm mcpt-timer 1000 800 500
atm pvp 100 l2transport
xconnect 10.0.0.1 234 encapsulation mpls
cell-packing 10 mcpt-timer 2
Related Commands Command Description
atm mcpt-timers Creates cell-packing timers, which specify how long the PE router can wait
for cells to be packed into an MPLS packet.
debug atm
cell-packing
Displays ATM cell relay cell packing debugging information.
show atm cell-packing Displays information about the VCs and VPs that have ATM cell relay over
MPLS cell packing enabled.