[j-nsp] 1000BaseT SFP

[OBrien, Will]

I've yet to see any gig copper sfp talk at 100mb. Ever.

Will O'Brien

On May 1, 2013, at 12:32 PM, "Keith" <kwoody at citywest.ca> wrote:

> Trying to connect GE copper SFP on MX to a 100meg port on a cisco switch, 3560 actually.
> 
> ge-0/0/2 {
>         description "<< Test Link >>";
>         enable;
>         speed 100m;
>         link-mode full-duplex;
>         unit 0 {
>             family inet {
>                 address 192.168.1.2/26;
> 
> show interface ge-0/0/2:
> 
> Physical interface: ge-0/0/2, Enabled, Physical link is Up
>   Interface index: 136, SNMP ifIndex: 511
>   Description: << Test Link >>
>   Link-level type: Ethernet, MTU: 1514, Speed: 100mbps, BPDU Error: None, MAC-REWRITE Error: None, Loopback: Disabled, Source filtering: Disabled, Flow control: Enabled,
>   Auto-negotiation: Enabled, Remote fault: Online
>   Device flags   : Present Running
>   Interface flags: SNMP-Traps Internal: 0x4000
>   Link flags     : None
>   CoS queues     : 8 supported, 8 maximum usable queues
>   Current address: 80:71:1f:91:10:02, Hardware address: 80:71:1f:91:10:02
>   Last flapped   : 2011-04-28 13:44:09 PDT (1w5d 03:08 ago)
>   Input rate     : 0 bps (0 pps)
>   Output rate    : 0 bps (0 pps)
>   Active alarms  : None
>   Active defects : None
> 
>   Logical interface ge-0/0/2.0 (Index 74) (SNMP ifIndex 522)
>     Flags: SNMP-Traps 0x4000000 Encapsulation: ENET2
>     Input packets : 0
>     Output packets: 19
>     Protocol inet, MTU: 1500
>       Flags: Sendbcast-pkt-to-re
>       Addresses, Flags: Is-Preferred Is-Primary
>         Destination: 192.168.1.0/26, Local: 192.168.1.2, Broadcast: 192.168.1.63
>     Protocol multiservice, MTU: Unlimited
> 
> Swapped cables etc, my question is can these 1000BaseT SFP's work at 100M? I can configure them as such
> but do they actually work at 100M?
> 
> Thanks,
> Keith
> 
> 
> 
> 
> 
> 
> 
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