12-22-2020 05:22 PM
Hi experts!
I run sh int ethx/x command to see port speed whether it is 1 gig or 10 gig. But i confused because it said "Hardware: 1000/10000 Ethernet" but it also said "full-duplex, 1000 Mb/s, media type is 1G". So it is 1 gig or 10 gig? The interface is connected to a server. Here is the sh int command ( i edited the sensitive part).
Ethernetx/x is up
admin state is up, Dedicated Interface
Hardware: 1000/10000 Ethernet, address: xxx
Description: xxx
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, medium is broadcast
Port mode is access
full-duplex, 1000 Mb/s, media type is 1G
Beacon is turned off
Auto-Negotiation is turned on
Input flow-control is off, output flow-control is off
Auto-mdix is turned on
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
EEE (efficient-ethernet) : n/a
Last link flapped 367week(s) 1day(s)
Last clearing of "show interface" counters 27w1d
0 interface resets
30 seconds input rate 10288 bits/sec, 1 packets/sec
30 seconds output rate 5992 bits/sec, 4 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 9.62 Kbps, 5 pps; output rate 4.97 Kbps, 9 pps
RX
99753068 unicast packets 0 multicast packets 0 broadcast packets
99698228 input packets 21702029623 bytes
0 jumbo packets 0 storm suppression packets
0 runts 0 giants 0 CRC 0 no buffer
0 input error 0 short frame 0 overrun 0 underrun 0 ignored
0 watchdog 0 bad etype drop 0 bad proto drop 0 if down drop
0 input with dribble 0 input discard
0 Rx pause
TX
147333897 unicast packets 19450412 multicast packets 548680 broadcast packets
167278149 output packets 12967764953 bytes
0 jumbo packets
0 output error 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble 0 output discard
0 Tx pause
I also want to ask how to see the media type whether the interface can be inserted directly by utp or the interface have to use sfp.
Thank you
12-22-2020 08:57 PM - edited 12-22-2020 08:58 PM
"Hardware" show the nexus LineCard or Nexus switch supported speed in hardware layer.
" full-duplex, 1000 Mb/s, media type is 1G" display the port real speed.
as you show above , your switch hardware support 1G/10G and this port insert a 1G SFP module
By "show interface status" you can also view the Port Speed and Media Type
N9K-1# sh int e2/14 Ethernet2/14 is up admin state is up, Dedicated Interface Belongs to Po24 Hardware: 1000/10000 Ethernet, address: cccc.cccc.2621 (bia cccc.cccc.2621) MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, medium is broadcast Port mode is trunk full-duplex, 1000 Mb/s, media type is 1G <------- Beacon is turned off ----- Omit part of the output---- N9K-1# sh int e2/15 Ethernet2/15 is up admin state is up, Dedicated Interface Belongs to Po25 Hardware: 1000/10000 Ethernet, address: cccc.cccc.2622 (bia cccc.cccc.2622) MTU 1500 bytes, BW 10000000 Kbit, DLY 10 usec reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, medium is broadcast Port mode is trunk full-duplex, 10 Gb/s, media type is 10G <------- Beacon is turned off ----- Omit part of the output---- N9K-1# sh int e2/14 transceiver Ethernet2/14 transceiver is present type is 1000base-SX name is CISCO-AVAGO part number is SFBR-5766PZ-CS2 revision is serial number is xxxxxxx25M nominal bitrate is 1300 MBit/sec cisco id is -- cisco extended id number is 4 N9K-1# sh int e2/15 transceiver Ethernet2/15 transceiver is present type is 10Gbase-SR name is CISCO-AVAGO part number is SFBR-709SMZ-CS1 revision is G4.1 serial number is xxxxxxLBU nominal bitrate is 10300 MBit/sec Link length supported for 50/125um OM2 fiber is 82 m Link length supported for 62.5/125um fiber is 26 m Link length supported for 50/125um OM3 fiber is 300 m cisco id is -- cisco extended id number is 4 N9K-1#sh int status -------------------------------------------------------------------------------- Port Name Status Vlan Duplex Speed Type -------------------------------------------------------------------------------- mgmt0 -- connected routed full 100 -- Eth1/1 -- connected trunk full 10G 10Gbase-SR Eth1/2 -- connected trunk full 10G 10Gbase-SR
12-22-2020 10:28 PM
Hello sir,
Thank you for your enlighment, if i may add another question, so i just show module in my nexus and find out that my ehternet 3 is 1/10 Gbps Ethernet Module, with the module is https://www.cisco.com/c/en/us/products/collateral/switches/nexus-7000-series-switches/data_sheet_c78-685394.html
Does it mean that the speed is depending on the transceiver? For example if i want to use 10 gig speed i just buy 10 gig transceiver, if i want 1 gig speed i just use 1 gig transceiver, is that correct?
12-22-2020 11:18 PM
Yes,you are right. real speed depends on the transceiver you used
01-07-2021 03:35 PM
Hello
sh interface x/x capabilities
will show you what media type/speed etc the interface supports
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