Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual page 372

JUNOSe 11.0.x Link Layer Configuration Guide
pppoe mtu
pppoe sessions
NOTE: The number of subinterfaces permitted on the interface for E120 and E320
routers is in the range 1–32,000 irrespective of the type of line module. However, if
you specify a value greater than the number of subinterfaces supported by a line
module, the number of subinterfaces created is the default maximum value for that
line module. For example, if you specify the number of subinterfaces for the ES2 4G
LM as 32,000 interfaces, the number of subinterfaces created is 16,000 which is the
default maximum value for the ES2 4G LM.
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Configuring PPPoE over ATM
Example
host1(config-subif)#pppoe duplicate-protection
Use the no version to disable duplicate protection.
See pppoe duplicate-protection.
Use to set the MTU using a combination of lower layer restrictions and controls.
You can specify an MTU greater than the current maximum permitted by
RFC 2516, in the range 66–65535.
You can use the use-lower-layer keyword to use the lower layer interface value
minus any PPPoE overhead. You can use the use-mtu-tag keyword to use the
provided PPPoE mtu tag value.
Example
host1(config-profile)#pppoe mtu 1380
Use the no version to restore the default value, 1494.
See pppoe mtu.
Use to specify the maximum number of PPPoE subinterfaces permitted on an
interface, in the range 1–8000 (ERX routers) or 1–32,000 (E120 and E320 router).
On the ES2 10G ADV LM (E120 and E320 router), you can have PPPoE
subinterfaces in the range 1–32000. The default value is 8000 (ERX routers) or
16,000 (E120 and E320 router) or 32,000 (ES2 10G ADV LM).
The pppoe sessions command affects only those subinterfaces that you create
after issuing this command. Previously created interfaces remain, even if their
number exceeds the new value for pppoe sessions.
Example
host1(config-if)#pppoe sessions 128
Use the no version to restore the default value, 8000 (ERX routers) or 16,000
(E120 and E320 routers) or 32,000 (ES2 10G ADV LM).
See pppoe sessions.