Dears,
As per the link below ISR 4331 supports GLC-SX-MMD i have inserted in gig0/0/2 and the media type seen on the interface is unknown the same sfp works fine in gig0/0/0 interface. i have checked the same SFP on another new router and status is same,
any hints is there any license issue to activate 3 interface
http://www.cisco.com/c/en/us/products/routers/4000-series-integrated-services-routers-isr/relevant-interfaces-and-modules.html#small-form-factor-pluggable
sh int gig0/0/2
GigabitEthernet0/0/2 is down, line protocol is down
Hardware is ISR4331-3x1GE, address is 009a.d286.1f82 (bia 009a.d286.1f82)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not supported
Full Duplex, 1000Mbps, link type is auto, media type is unknown media type
output flow-control is on, input flow-control is on
CPE01(config)#int gig0/0/0
CPE01(config-if)#media-type ?
auto-select Use whichever connector is attached
rj45 Use RJ45 connector
sfp Use SFP connector
CPE01(config)#int gig0/0/2
CPE01(config-if)#m?
mac-address macsec medium mka mtu
Index 3 Feature: securityk9
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Count: Non-Counted
License Priority: Medium
