[j-nsp] EX3200 Interface Strangeness

[Brendan Mannella]

What happens if a 10g card is installed? Do you lose the last two ports?

And is this behavior the same on the 4200?


On 8/17/09 10:41 AM, "Bill Blackford" <BBlackford at nwresd.k12.or.us> wrote:

> That makes sense. I'm not at all happy with it, but it makes sense. I'm am
> using ge-0/1/0 which must correspond to ge-0/0/20.
> 
> Thanks.
> 
> -b
> 
> -----Original Message-----
> From: Mike Mainer [mailto:mmainer at tekinside.com]
> Sent: Monday, August 17, 2009 7:39 AM
> To: Bill Blackford
> Subject: Re: [j-nsp] EX3200 Interface Strangeness
> 
> The 3200 is setup so that if an uplink Mod is installed you loose the
> last X ports.  Example:   you have a 24x10/100/1000 with 4x1GigE card.
> If/when ports are active on this 4x1GigE card ports 20-23 become
> INACTIVE.  They are mutely exclusive.
> 
> -Mike Mainer
> 
> 
> 
> Bill Blackford wrote:
>> I'm experiencing a weird issue with an interface that seems to have vanished.
>> (see below 1.)
>> I also have a general question on how the EX platform indexes interfaces.
>> (see below 2.)
>> 
>> =================================================
>> 1. Vanishing Interface
>> 
>> I have several ex3200's in production and noticed that ge-0/0/20 shows up in
>> the config, but doesn't appear to exist.
>> 
>> bblackford at wsc-sw-ex3200-1> show chassis hardware
>> Hardware inventory:
>> Item             Version  Part number  Serial number     Description
>> Chassis                                BH0208188142      EX3200-24T
>> FPC 0            REV 07   750-021261   BH0208188142      EX3200-24T, 8 POE
>>   CPU                     BUILTIN      BUILTIN           FPC CPU
>>   PIC 0                   BUILTIN      BUILTIN           24x 10/100/1000
>> Base-T
>>   PIC 1          REV 04   711-021270   AR0209216364      4x GE SFP
>>     Xcvr 0                NON-JNPR     FFX20H700284      SFP-SX
>> Power Supply 0   REV 02   740-020957   AT0508119769      PS 320W AC
>> Fan Tray                                                 Fan Tray
>> 
>> bblackford at wsc-sw-ex3200-1> show version
>> Hostname: wsc-sw-ex3200-1
>> Model: ex3200-24t
>> JUNOS Base OS boot [9.5R2.7]
>> 
>> bblackford at wsc-sw-ex3200-1> show chassis fpc pic-status
>> Slot 0   Online       EX3200-24T, 8 POE
>>   PIC 0  Online       24x 10/100/1000 Base-T
>>   PIC 1  Online       4x GE SFP
>> 
>> 
>> Now,
>> 
>> bblackford at wsc-sw-ex3200-1> show configuration interfaces ge-0/0/20
>> unit 0 {
>>     family ethernet-switching {
>>         vlan {
>>             members VOIP;
>>         }
>>     }
>> }
>> 
>> bblackford at wsc-sw-ex3200-1> show interfaces ge-0/0/20
>> error: device ge-0/0/20 not found
>> 
>> 
>> snmpwalk from a host:
>> ifDescr.148 = STRING: ge-0/0/18
>> ifDescr.149 = STRING: ge-0/0/18.0
>> ifDescr.150 = STRING: ge-0/0/19
>> ifDescr.151 = STRING: ge-0/0/19.0
>>                                    <<====== 152 and 153 are missing
>> ifDescr.154 = STRING: ge-0/0/21
>> ifDescr.155 = STRING: ge-0/0/21.0
>> ifDescr.156 = STRING: ge-0/0/22
>> ifDescr.157 = STRING: ge-0/0/22.0
>> ifDescr.158 = STRING: ge-0/0/1.0
>> ifDescr.159 = STRING: ge-0/0/23
>> ifDescr.160 = STRING: ge-0/0/0
>> ifDescr.161 = STRING: ge-0/0/0.0
>> ifDescr.162 = STRING: ge-0/0/1
>> ifDescr.163 = STRING: vlan
>> ifDescr.164 = STRING: vlan.0
>> ifDescr.165 = STRING: vlan.1
>> ifDescr.166 = STRING: ge-0/1/0
>> ifDescr.167 = STRING: ge-0/1/0.0
>> ifDescr.170 = STRING: ge-0/0/23.0
>> 
>> 
>> ======================================================
>> 2. Indexing question
>> During the gathering of data for issue 1 above, I ran some walks against
>> other ex3200's I have and noticed that the indexing is not consistent.
>> Here's another ex3200 running the same code rev as above:
>> ifDescr.148 = STRING: ge-0/0/18
>> ifDescr.149 = STRING: ge-0/0/18.0
>> ifDescr.150 = STRING: ge-0/0/19
>> ifDescr.151 = STRING: ge-0/0/19.0
>> ifDescr.152 = STRING: ge-0/0/20
>> ifDescr.153 = STRING: ge-0/0/20.0
>> ifDescr.154 = STRING: ge-0/0/21
>> ifDescr.155 = STRING: ge-0/0/21.0
>> ifDescr.156 = STRING: ge-0/0/22
>> ifDescr.157 = STRING: ge-0/0/22.0
>> ifDescr.158 = STRING: ge-0/0/23
>> ifDescr.159 = STRING: ge-0/0/23.0
>> ifDescr.160 = STRING: vlan
>> ifDescr.163 = STRING: ge-0/0/0
>> ifDescr.164 = STRING: ge-0/0/0.0
>> ifDescr.165 = STRING: ge-0/0/1
>> ifDescr.166 = STRING: ge-0/0/11.69
>> ifDescr.167 = STRING: ge-0/0/11.70
>> ifDescr.168 = STRING: ge-0/0/1.0
>> 
>> There seems to be no correlation between the ifDescr seq numbers and the
>> interface names. Now, the switch above has a 4x GE SFP PIC and the one below
>> does not, but I find it strange that interfaces show up all over the place as
>> if they were dynamically populated into a table.
>> ==============================================
>> 
>> Sorry for the length of this post.
>> Thank you for any input.
>> 
>> -b
>> 
>> 
>> --
>> Bill Blackford  
>> Senior Network Engineer
>> Technology Systems Group
>> Northwest Regional ESD
>> 
>> my /home away from home
>> 
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