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Juniper- Petit guide de survie pour un newbie ...

Sommaire

1 Sites Références
2 Notes
3 Command Summary
4 Advanced Commands Summary
5 Additional References

Sites Références

Notes

There are several acronyms for interface types and components:

  * IFD – Interface Physical Device
  * IFL – Interface Logical Device
  * IFF – Address Family
  * IFA – Address Entry

Common interface names are:

   * ge – Gigabit ethernet
   * xe – 10G ethernet
   * et – 100G ethernet
   * ae – aggregated ethernet (LAG/etherchannel)
   * vlan or irb – Logical interface based on VLAN

SFP’s can be of different speeds (eg, one may be 1G, and another may be 10G). So be aware that the interface names may change based on the SFP used.

The interface naming convention is type-x/y/z

   Type is ge, xe, etc
   x – FPC (aka linecard)
   y – module or slot
   z – port number

There are several names for management interfaces. Each platform may use different names. These include fxp0, em0, me0, and vme0. Some of these are physical, and others are virtual.

Some interfaces, such as pimd, pime, dsc, ipip, and gre, are special interfaces that are used for special purposes.

An unnumbered interface does not have an IP address. This helps conserve IP addresses.

All interfaces are configured with a unit. This contains logical interface information, like addressing. Sometimes this is used to create sub-interfaces. Physical properties (duplex, link speed, etc) are not configured in the unit.

Each unit may have one or more family. This is where the address is applied. For example, the inet family is for IPv4 addressing.

Addresses can be primary, preferred, or secondary. Primary addresses are used for locally sourced (broadcast or multicast) traffic, destined to a remote subnet. Preferred addresses are for locally sourced traffic to the local subnet.

Configuring voice ports means three main steps:

  * Configuring a voice VLAN
  * Configuring PoE
  * Configuring LLDP-MED

Junos supports regex during configuration.

Command Summary

Juniper OS Command summary
Command	Mode	Description
`show system uptime`	operational	Get uptime & date of all fpc
`show log messages`	operational	Dump system logs
`show cli history`	operational	Get cli commands history
`show interfaces terse`	operational	Get a simplified view of all interfaces on the system
`show interfaces [extensive]`	operational	Get interface statistics
`show interfaces terse`	operational	Get a simplified view of all interfaces on the system
`show lacp interfaces aexx [extensive]`	operational	Get bond LACP interface statistics
`set interfaces INTERFACE …`	configuration	Configures an interface
`set interfaces INTERFACE description`	configuration	Adds a description to an interface
`set interfaces INTERFACE unit NUMBER family inet address …`	configuration	Configures an IPv4 address
`set interfaces INTERFACE disable`	configuration	Disables an interface
`set vlans NAME vlan-id ID`	configuration	Defines a VLAN
`show vlans`	operational	Shows a list of configured VLANs
`set interfaces INTERFACE unit 0 family ethernet-switching interface-mode <access/trunk>`	configuration	Sets a layer-2 port type (trunk port or access port)
`set interfaces INTERFACE unit 0 family ethernet-switching vlan members VLAN`	configuration	Adds VLANs to the port
`set interfaces INTERFACE vlan-tagging`	configuration	Enables VLAN tagging, which enables the use of units as subinterfaces
`set poe interface all`	configuration	Enables PoE on all interfaces
`set protocols lldp-med interface all`	configuration	Enables LLDP-MED on all interfaces
`rename`	configuration	Renames some configuration
`deactivate`	configuration	Deactivates any part of the config
`copy`	configuration	Copy some configuration from one place to another
`replace`	configuration	Replace some configuration
`annotate`	configuration	Adds annotations into the config, like comments in code

Advanced Commands Summary

Juniper OS Command summary
Command	Mode	Description
`configure`	operational	Switch to configuration mode
`delete interface <interface>`	operational	Delete an interface (ex : delete xe-0/0/0)
`commit check`	operational	Validate a conf without apply
`commit`	operational	apply a modified conf
`commit confirmed <timeout in min>`	operational	Apply a conf and roll back after x min if not commited in timelapse
`load set terminal`	operational	Input a set of commands from the terminal until ^D is pressed
`set interfaces <interface name> mtu 9126`	operational	Configure Jumbo frame on an interface
`set interfaces <interface name> unit 0 family ethernet-switching interface-mode trunk`	operational	Configure a TRUNK on an interface
`set interfaces <interface name> unit 0 family ethernet-switching vlan members [ VLANS or vlans id ]`	operational	Configure VLANs allowed in a trunk
`delete apply-groups <group name>`	operational	Remove a group applied
`show interfaces \\ display set \\ grep description`	operational	Display commands used for interfaces descriptions settings
`show \\ display set`	operational	Display commands used for all con figuration settings