Configuring Higher-Level Protocols over S-VLANs
The procedures for configuring IP, PPPoE, and MPLS protocols over S-VLANs on
bridged Ethernet interfaces are identical to the procedures for configuring these
protocols over VLANs on bridged Ethernet interfaces.
This section provides an example for configuring PPPoE interfaces over S-VLAN
subinterfaces configured on bridged Ethernet. For descriptions of the commands
used in this procedure, see “Configuring Higher-Level Protocols over VLANs” on
page 454.
To configure PPPoE over S-VLAN over a bridged Ethernet interface:
1.
Follow the steps in “Configuring S-VLAN Subinterfaces over Bridged Ethernet”
on page 458 to configure the S-VLAN subinterface.
2.
Create a PPPoE major interface on the S-VLAN subinterface.
host1(config-subif)#
pppoe
3.
Exit the subinterface context.
host1(config-subif)#
exit
4.
Create a PPPoE subinterface by adding a subinterface number to the interface
identification command.
host1(config)#
pppoe subinterface atm 3/1.1.1.1
5.
Specify PPP as the encapsulation method on the interface.
host1(config-subif)#
encapsulation ppp
6.
Assign an IP address and mask to the interface.
host1(config-subif)#
ip address 10.1.2.3 255.255.255.255
Configuring the MTU Size for Bridged Ethernet
You can use the
bridge1483 mtu
command to configure a nondefault maximum
transmission unit (MTU) size, in bytes, for a bridged Ethernet interface. The default
MTU size for a bridged Ethernet interface is 1518 bytes.
Because you configure a bridged Ethernet interface over an ATM 1483 subinterface,
the MTU size set with the
bridge1483 mtu
command is limited by the MTU set for
the underlying ATM 1483 subinterface. As a result, the
bridge1483 mtu command
requires you to configure an
MTU size for the bridged Ethernet interface that does
not exceed the maximum allowable MTU size for the underlying ATM 1483
subinterface, 9180 bytes.
The configured MTU size for an interface is referred to as its
administrative MTU
, and
the MTU size at which the interface actually operates is referred to as its
operational
460
■
Configuring the MTU Size for Bridged Ethernet
JUNOSe 11.1.x Link Layer Configuration Guide
Содержание JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010
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Страница 200: ...168 Monitoring Upper Level Protocols over Ethernet JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 230: ...198 Monitoring VLAN and S VLAN Subinterfaces JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 258: ...226 Monitoring 802 3ad Link Aggregation JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 334: ...302 Troubleshooting JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 394: ...362 Monitoring Multiclass MLPPP JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 406: ...374 Monitoring POS JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 468: ...436 Troubleshooting JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 498: ...466 Monitoring Bridged Ethernet JUNOSe 11 1 x Link Layer Configuration Guide...
Страница 546: ...514 Monitoring Cisco HDLC JUNOSe 11 1 x Link Layer Configuration Guide...
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