Switching

Experts,

I have set up link aggregation AE21: 

aggregated-ether-options {
lacp {
active;
periodic fast;
}
}
unit 0 {
family ethernet-switching {
interface-mode trunk;
vlan {
members all;
}
}
}

added port ge-2/0/21 & ge-2/0/22 but when I do sh int ae21 it says error: device ae21 not found however:

run show interfaces terse | match ae21 :
ge-2/0/21.0 up up aenet --> ae21.0
ge-2/0/22.0 up up aenet --> ae21.0

and:

ae20 up up 
ae21   ?   ?

I am missing something I know 

run show lacp interfaces

 does not show me that AE21 interface 

if sh int shows:

ae0 up up 
ae1 up up 
ae2 up up 
ae3 up down 
ae4 up up 
ae8 up up 
ae11 up up 
ae12 up up 
ae13 up up 
ae14 up up 
ae15 up down 
ae17 up down 
ae18 up down 
ae19 up up 
ae20 up up 
ae21 

probably set chassis aggregated-devices ethernet device-count X was skipped so should I place:

set chassis aggregated-devices ethernet device-count 16  - where "16" is the total count of ae ? what happend if I place 21?

just corious?

you should specify 22

this gives you 22 ae interfaces starting from 0 up to 21

regards

alexander

Hi Folks,

The below statement is a mandatory to configure the number of ae devices with LAG interface that you need to create.

 [edit]

user@host# set chassis aggregated-devices ethernet device-count 22

Moreover to add, Aggregated Ethernet interfaces does not show up after adding them to an MX series router with Junos14.2 (all releases) using the ‘set chassis aggregated-devices ethernet device-count <#>’ command and committing. The ‘show interfaces terse’ command was used to check the available aggregated Ethernet interfaces.

This behavior specifically applies to Junos 14.2 (all releases). This version facilitates the naming scheme of an aggregate Ethernet interface at the logical system level, as described in the Release Notes: Junos® OS Release 14.2R1 for the EX Series, M Series, MX Series, PTX Series, and T Series.

Beginning with Junos 14.2 (all releases), the command ‘set aggregated-devices ethernet device-count <#>’ committed at the [edit chassis] level changed. The aggregate Ethernet interfaces do not appear in the ‘show interfaces terse’. The aggregated Ethernet interfaces will appear when they are fully configured at the [edit interfaces] level and have links associated with it.

Example:

Before Junos 14.2, the behavior was:

[edit chassis]
labroot@MX960# show
aggregated-devices {
ethernet {
device-count 5;

labroot@MX960> show interfaces terse
Interface Admin Link Proto Local Remote
...
Search for: ae
ae0 up down
ae1 up down
ae2 up down
ae3 up down
ae4 up down

In Junos 14.2 (all releases), the new behavior is:

[edit chassis]
labroot@MX960# show
aggregated-devices {
ethernet {
device-count 5;

labroot@MX960> show interfaces terse
Interface Admin Link Proto Local Remote
...
Search for: ae
Pattern not found      

https://kb.juniper.net/InfoCenter/index?page=content&id=KB30826&actp=RSS

my 4300's are on [14.1X53-D35.3]  so 14.1 

thank you all for help HAPPY NEW YEAR !!!!!!

yes adding set chassis aggregated-devices ethernet device-count X in my case 22 showed ae21 and all even missing ae5 now I see all ae0 to ae21, I have to addmit I was sceptic before we upgraded from Cisco to Junioper but now I see this is great product with more options than Cisco.

Of course the Juniper forums is great as well, so quick resposne. Thank You again !!!!!!!!!!!!

seem the only problem is it is down:

ae21 up down
ae21.0 up down eth-switch

Both ports are connected 

Physical interface: ae21, Enabled, Physical link is Down

I have all configured like other ae and other ae is up and running ....... 

looks like both ports have inactive ether option but when I do actiavte ether option I have

'unit 0'
logical unit is not allowed on aggregated links
error: configuration check-out failed

all is fine now, lacp ae 21 is up