Configuring Logical Interface Properties

For a physical interface device to function, you must configure at least one logical interface on that device. For each logical interface, you must specify the protocol family that the interface supports. You can also configure other logical interface properties. These vary by Physical Interface Card (PIC) and encapsulation type, but include the IP address of the interface, and whether the interface supports multicast traffic, data-link connection identifiers (DLCIs), virtual channel identifiers (VCIs) and virtual path identifiers (VPIs), and traffic shaping.

To configure logical interface properties, include the following statements:

        unit logical-unit-number {

            accept-source-mac {

                mac-address mac-address {

                    policer {

                        input cos-policer-name;

                        output cos-policer-name;

                    }

                }

            }

            accounting-profile name;

            allow-any-vci;

            atm-scheduler-map (map-name | default);

            backup-options {

                interface interface-name;

            }

            bandwidth rate;

            cell-bundle-size cells;

            clear-dont-fragment-bit;

            compression { 

                rtp {

                    f-max-period number;

                    queues [ queue-numbers ];

                    port {

                        minimum port-number;

                        maximum port-number;

                    }

                }

            }

            compression-device interface-name;

            description text;

            dial-options {

                l2tp-interface-id name;

                (dedicated | shared);

            }

            dialer-options { 

                activation-delay seconds;

                callback;

                callback-wait-period time;

                deactivation-delay seconds;

                dial-string [dial-string-numbers];

                idle-timeout seconds;

                incoming-map {

                    caller caller-id) | accept-all;

                {

                initial-route-check seconds;

                load-interval seconds;

                load-threshold number;

                pool pool-name;

                redial-delay time;

                watch-list {

                    [ routes ];

            }

            disable;

            dlci dlci-identifier; 

            drop-timeout milliseconds;

            encapsulation type;

            epd-threshold cells plp1 cells;

            family family {

                filter filter-name;

            {

            fragment-threshold bytes;

            input-vlan-map {

                (pop | pop-pop | pop-swap | push | push-push | swap |

                    swap-push | swap-swap);

                inner-tag-protocol-id;

                inner-vlan-id;

                tag-protocol-id tpid;

                vlan-id number;

            }

            interleave-fragments;

            inverse-arp; 

            link-layer-overhead percent;

            minimum-links number;

            mrru bytes;

            multicast-dlci dlci-identifier; 

            multicast-vci vpi-identifier.vci-identifier; 

            multilink-max-classes number;

            multipoint;

            oam-liveness {

                up-count cells;

                down-count cells;

            }

            oam-period (seconds | disable); 

            output-vlan-map {

                (pop | pop-pop | pop-swap | push | push-push | swap|

                    swap-push | swap-swap);

                inner-tag-protocol-id;

                inner-vlan-id;

                tag-protocol-id tpid;

                vlan-id number;

            }

            passive-monitor-mode;

            peer-unit unit-number;

            plp-to-clp;

            point-to-point;

            ppp-options {

                chap {

                    access-profile name;

                    local-name name;

                    passive;

                }

                compression {

                    acfc;

                    pfc;

                }

                lcp-restart-timer milliseconds;

                ncp-restart-timer milliseconds;

            }

            proxy-arp;

            service-domain (inside | outside);

            shaping { 

                (cbr rate | rtvbr peak rate sustained rate burst length |

                              vbr peak rate sustained rate burst length); 

                queue-length number;

            } 

            short-sequence;

            transmit-weight number;

            (traps | no-traps);

            trunk-bandwidth rate;

            trunk-id number;

            tunnel {

                backup-destination address;

                destination address; 

                key number;

                routing-instance {

                    destination routing-instance-name;

                }

                source source-address;

                ttl number;

            }

            vci vpi-identifier.vci-identifier; 

            vpi vpi-identifier;

            vlan-id number;

            vlan-tags inner tpid.vlan-id outer tpid.vlan-id;

            family family {

            family {

                family-statements;

            {

        }

    }

}

You can include these statements at the following hierarchy levels:

• [edit interfaces interface-name]
• [edit logical-routers logical-router-name interfaces interface-name]

This chapter describes the configuration of the logical interface properties:

• Specifying the Logical Interface Number
• Configuring Logical Router Interface Properties
• Adding a Logical Unit Description to the Configuration
• Configuring a Point-to-Point Connection
• Configuring a Multipoint Connection
• Configuring Accounting for the Logical Interface
• Configuring the Interface Bandwidth
• Enabling or Disabling SNMP Notifications on Logical Interfaces
• Configuring Interface Encapsulation
• Configuring the PPP Timer
• Disabling a Logical Interface

For information about interface-specific logical properties, see Interface Types.

Table 18 lists statements that you can use to configure logical interfaces.

Table 18: Statements for Logical Interface Properties  

Statement	Interface Types	Usage Guidelines
access-profile name	ATM2 IQ interfaces	Configuring the PPP Challenge Handshake Authentication Protocol
accept-source-mac	Gigabit Ethernet intelligent queuing (IQ) interfaces	Configuring MAC Address Filtering
accounting-profile name	All	Configuring Accounting for the Logical Interface
ack-delay-time time	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
ack-max count	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
activation-delay seconds	ISDN interfaces	Configuring ISDN Interfaces
adaptive-shapers adaptive-shaper-name	Frame Relay interfaces on J-series Services Routers	JUNOS Class of Service Configuration Guide
allow-any-vci	Asynchronous Transfer Mode (ATM) interfaces	Configuring ATM Interface Encapsulation
atm-scheduler-map (map-name | default)	ATM2 IQ interfaces	Configuring ATM2 IQ VC Tunnel CoS Components
backup-destination address	Encryption interfaces	JUNOS Class of Service Configuration Guide
backup-options	J-series Services Routers ISDN interfaces	Configuring an ISDN Dialer Interface as a Backup Interface
bandwidth rate	All interfaces, except multilink and aggregated	Configuring the Interface Bandwidth
cbr rate	ATM interfaces	Defining the ATM Traffic-Shaping Profile
cell-bundle-size cells	ATM2 IQ interfaces	Configuring the Layer 2 Circuit Cell-Relay Cell Maximum
clear-dont-fragment-bit	Adaptive services interfaces	JUNOS Services Interfaces Configuration Guide
compression	AS PIC or MultiServices PIC link services IQ interfaces (lsq) and voice services interfaces	JUNOS Services Interfaces Configuration Guide
compression-device interface-name	J-series Services Routers E1 and T1 interfaces.	JUNOS Services Interfaces Configuration Guide
deactivation-delay seconds	ISDN interfaces	Configuring ISDN Interfaces
description text	All	Adding a Logical Unit Description to the Configuration
destination (address | routing-instance-name)	Encryption generic routing encapsulation (GRE) tunnel, and IP tunnel interfaces	JUNOS Services Interfaces Configuration Guide
dialer-options	Adaptive services interfaces on M7i routing platforms J-series Services Routers ISDN interfaces	JUNOS Services Interfaces Configuration Guide Configuring ISDN Physical Interface Properties
disable	All	Disabling a Logical Interface
dlci dlci-identifier	Point-to-point interfaces with Frame Relay encapsulation	Configuring Frame Relay DLCIs
drop-timeout milliseconds	Multilink interfaces	JUNOS Services Interfaces Configuration Guide
encapsulation type	All interfaces, except aggregated SONET/SDH and loopback	Configuring the Encapsulation on a Logical Interface
epd-threshold cells	ATM2 IQ interfaces	Configuring the ATM2 IQ EPD Threshold
f-max-period number	AS PIC or MultiServices link services IQ interfaces (lsq) and voice services interfaces	JUNOS Services Interfaces Configuration Guide
family	All	Configuring the Protocol Family
fragment-threshold bytes	Multilink interfaces	JUNOS Services Interfaces Configuration Guide
frame-relay-de (map-name | default)	Frame Relay Interfaces on J-series Services Routers	JUNOS Services Interfaces Configuration Guide JUNOS Class of Service Configuration Guide
idle-time time	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
idle-timeout	ISDN interfaces	Configuring Bandwidth on Demand
initial-route-check seconds	ISDN interfaces	Configuring ISDN Logical Interface Properties
inner-vlan-id	Gigabit Ethernet IQ interfaces	Configuring 802.1Q VLANs
inner-tag-protocol-id	Gigabit Ethernet IQ interfaces	Configuring 802.1Q VLANs
input	AS PIC or MultiServices link services	JUNOS Services Interfaces Configuration Guide
input-vlan-map	Gigabit Ethernet IQ interfaces	Configuring the Management Ethernet Interface
interleave-fragments	Link services interfaces	JUNOS Services Interfaces Configuration Guide
inverse-arp	Interfaces with ATM and Frame Relay encapsulation	Configuring Inverse ATM1 or ATM2 ARP and Configuring Inverse Frame Relay ARP
key number	GRE tunnel interfaces on Adaptive Services PICs	JUNOS Services Interfaces Configuration Guide
lcp-restart-timer	Interfaces with PPP encapsulation.	Configuring the PPP Timer
l2tp-interface-id name	Adaptive services interfaces	JUNOS Services Interfaces Configuration Guide
link-layer-overhead percent	AS PIC or MultiServices link services IQ interfaces (lsq)	JUNOS Services Interfaces Configuration Guide
llc2	Ethernet interfaces configured for DLSw on J-series Services Routers	Configuring LLC2 Options
load-threshold number	ISDN interfaces	Configuring Bandwidth on Demand
local-name name	ATM2 IQ interfaces	Configuring the PPP Challenge Handshake Authentication Protocol
local-window count	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
loss-priority-maps	Frame Relay interfaces on J-series Services Routers	JUNOS Services Interfaces Configuration Guide JUNOS Class of Service Configuration Guide
mac-address mac-address	Gigabit Ethernet IQ interfaces and Gigabit Ethernet interfaces with small form-factor pluggable transceivers (SFPs) (except the 10-port Gigabit Ethernet PIC and the built-in Gigabit Ethernet port on the M7i platform)	Configuring MAC Address Filtering
max-retry count	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
minimum-links number	Multilink interfaces	JUNOS Services Interfaces Configuration Guide
mrru bytes	Multilink interfaces	JUNOS Services Interfaces Configuration Guide
multicast-dlci dlci-identifier	Point-to-multipoint Frame Relay interfaces	Configuring a Multicast-Capable Frame Relay Connection
multicast-vci vpi-identifier.vci-identifier	Point-to-multipoint ATM1 and ATM2 IQ interfaces	Configuring the ATM OAM F5 Loopback Cell Threshold
multilink-max-classes number	AS PIC or MultiServices link services IQ interfaces (lsq)	JUNOS Services Interfaces Configuration Guide
multipoint	All	Configuring a Multipoint Connection
ncp-restart-timer	Interfaces with PPP encapsulation.	Configuring the PPP Timer
oam-liveness	ATM1 and ATM2 IQ interfaces	Configuring the ATM OAM F5 Loopback Cell Threshold
oam-period (disable | seconds)	ATM1 and ATM2 IQ interfaces	Defining the ATM OAM F5 Loopback Cell Period
output	All	JUNOS Services Interfaces Configuration Guide
output-vlan-map	Gigabit Ethernet IQ interfaces	Configuring the Management Ethernet Interface
passive	ATM2 IQ interfaces	Configuring the PPP Challenge Handshake Authentication Protocol
passive-monitor-mode	SONET/SDH interfaces	Enabling Passive Monitoring on SONET/SDH Interfaces
p-bit-timeout time	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
peer-unit unit-number	Logical tunnel interfaces	JUNOS Services Interfaces Configuration Guide
pfc	Interfaces with PPP, PPP CCC, or PPP TCC encapsulation	Configuring the PPP Protocol Field Compression
plp1 cells	ATM2 IQ interfaces	Configuring the ATM2 IQ EPD Threshold
plp-to-clp	ATM2 IQ interfaces	Enabling the PLP Setting to Be Copied to the CLP Bit
point-to-point	All	Configuring a Point-to-Point Connection
policer	Gigabit Ethernet IQ and Gigabit Ethernet PICs with SFPs (except the 10-port Gigabit Ethernet PIC and the built-in Gigabit Ethernet port on the M7i platform)	Configuring MAC Address Filtering
pop	Gigabit Ethernet IQ interfaces	Removing a VLAN Tag
pop-pop	Gigabit Ethernet IQ interfaces	Removing the Outer and Inner VLAN Tags
pop-swap	Gigabit Ethernet IQ interfaces	Removing the Outer VLAN Tag and Rewriting the Inner VLAN Tag
port	AS PIC or MultiServices or MultiServices link services IQ interfaces (lsq) and voice services interfaces	JUNOS Services Interfaces Configuration Guide
ppp-options	Interfaces with PPP, PPP CCC, or PPP TCC encapsulation	Configuring the PPP Challenge Handshake Authentication Protocol
proxy-arp	Ethernet interfaces	Configuring Unrestricted Proxy ARP
push	Gigabit Ethernet IQ interfaces	Stacking a VLAN Tag
push-push	Gigabit Ethernet IQ interfaces	Stacking Two VLAN Tags
queue-length number	ATM1 interfaces	Configuring the ATM1 Queue Length
queues [ queue-numbers ]	AS PIC or MultiServices link services IQ interfaces (lsq) and voice services interfaces	JUNOS Services Interfaces Configuration Guide
routing-instance	GRE tunnel and IP tunnel interfaces	JUNOS Services Interfaces Configuration Guide
rtp	AS PIC or MultiServices link services IQ interfaces (lsq) and voice services interfaces	JUNOS Services Interfaces Configuration Guide
rtvbr peak rate sustained rate burst length	ATM2 interfaces	Configuring ATM2 IQ Real-Time VBR
service-domain (inside | outside)	Adaptive services interfaces	JUNOS Services Interfaces Configuration Guide
shaping	ATM1 and ATM2 IQ interfaces	Defining the ATM Traffic-Shaping Profile
short-sequence	Multilink interfaces	JUNOS Services Interfaces Configuration Guide
source source-address	Encryption, GRE tunnel, and IP tunnel interfaces	JUNOS Services Interfaces Configuration Guide
swap	Gigabit Ethernet IQ interfaces	Rewriting the VLAN Tag
swap-push	Gigabit Ethernet IQ interfaces	Rewriting a VLAN Tag and Adding a New Tag
swap-swap	Gigabit Ethernet IQ interfaces	Rewriting the Inner and Outer VLAN Tags
tag-protocol-id tpid	Gigabit Ethernet IQ interfaces	Rewriting the VLAN Tag
t1-time time	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
t2-time time	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
transmit-weight number	ATM2 IQ interfaces	Configuring the ATM2 IQ Transmission Weight
trej-time time	Ethernet interfaces configured for DLSw	Configuring LLC2 Options
(traps | no-traps)	All	Enabling or Disabling SNMP Notifications on Logical Interfaces
trunk-bandwidth rate	ATM2 IQ interfaces	Configuring Layer 2 Circuit Trunk Mode Scheduling
trunk-id number	ATM2 IQ interfaces	Configuring Layer 2 Circuit Transport Mode
ttl number	GRE tunnel and IP tunnel interfaces	JUNOS Services Interfaces Configuration Guide
tunnel	Encryption, GRE tunnel, and IP tunnel interfaces	JUNOS Services Interfaces Configuration Guide
vbr peak rate sustained rate burst length	ATM interfaces	Defining the ATM Traffic-Shaping Profile
vci vpi-identifier.vci-identifier	ATM1 and ATM2 IQ point-to-point interfaces	Configuring a Point-to-Point ATM1 or ATM2 IQ Connection
vpi vpi-identifier	ATM1 and ATM2 IQ point-to-point interfaces	Configuring a Point-to-Point ATM1 or ATM2 IQ Connection
vlan-id number	Fast Ethernet and Gigabit Ethernet interfaces	Binding a VLAN ID to a Logical Interface
vlan-tags inner tpid.vlan-id outer tpid.vlan-id	Gigabit Ethernet IQ interfaces	Configuring Dual VLAN Tags
watch-list	ISDN interfaces	Configuring Dialer Watch