Source: Web Workers - How to change default password of Brocade fibre channel SAN switches

Change password of admin and user:

username admin NEWPASSWORD
username user NEWPASSWORD

The VDX6720 uses an old version of sshd with an old HostKeyAlgorithm that newer versions of ssh no longer allow by default.

To connect to a VDX6720 with ssh you must provide the correct older HostKeyAlgorithm when connecting.

ssh -o HostKeyAlgorithms=ssh-rsa root@10.10.0.10

When logging in as root you do not have access to the switch management tooling until you start:

noscli

copy running-config startup-config

A VDX6720 does not provide scp, but a cat via ssh redirected to a file can be used for creating a back-up of the current startup-config:

ssh -o HostKeyAlgorithms=ssh-rsa root@10.10.0.10 "cat /var/config/vcs/scripts/startup-config" > /data/backup/switch04/`date +%Y-%m-%d`\ -\ startup-config

show running-config int te 4/0/3

For a range of interfaces:

conf t
int te 4/0/3-5
# Now enter the configuration commands that should apply to port 3, 4, and 5.

For 2 interfaces:

conf t
int te 4/0/1,6
# Now enter the configuration commands that should apply to port 1, and 6.

Show the media status of interface 1 on switch with id 4.

show media te 4/0/1

Example output for a recognized SFP:

sw0# show media int te 4/0/1
  Interface      TenGigabitEthernet 4/0/1
  Identifier     3    SFP
  Connector      33   Copper Pigtail
  Transceiver            d580844104000001 10_GB/s TW Short_dist
  Name           cu
  Encoding       0    
  Baud Rate      103 (units 100 megabaud)
  Length 9u      0   (units km)
  Length 9u      0   (units 100 meters)
  Length 50u     0   (units 10 meters)
  Length 62.5u   0   (units 10 meters)
  Length Cu      3   (units 1 meter)
  Vendor Name    BROCADE         
  Vendor OUI     00:05:1e
  Vendor PN      58-1000025-01   
  Vendor Rev     A
  Wavelength     0   (units nm)
  Options        0012 
  BR Max         0   
  BR Min         0   
  Serial No      CAS2111804520-2 
  Date Code      211026  
  Optical Monitor No
  Temperature    N/A
  Voltage        N/A
  Current        N/A
  TX Power       N/A
  RX Power       N/A

Example output for un unrecognized SFP:

sw0# show media int te 4/0/1
  Interface        TenGigabitEthernet 4/0/1
  Optic is not Brocade qualified, optical monitoring is not supported

Transceiver  d580844104000001
  Identifier     3    SFP
  Name           cu
  Vendor Name    FS              
  Vendor OUI     00:00:00
  Vendor PN      SFPP-PC03       
  Vendor Rev     A0  

clear mac-address-table dynamic

Show interface switchport information:

sw04# show interface tengigabitethernet 4/0/1 switchport 
 Interface name          : TenGigabitEthernet 4/0/1
 Switchport mode         : trunk
 Fcoeport enabled        : no
 Ingress filter          : enable
 Acceptable frame types  : vlan-tagged only
 Native Vlan             : 1
 Active Vlans            : 1-4,8-10,12-13,15
 Inactive Vlans          : -

sw04# show interface tengigabitethernet 4/0/1 
TenGigabitEthernet 4/0/1 is up, line protocol is up (connected)
Hardware is Ethernet, address is 0005.3354.2269
    Current address is 0005.3354.2269
Pluggable media present
Interface index (ifindex) is 17582555136
MTU 2500 bytes
LineSpeed Actual     : 10000 Mbit
LineSpeed Configured : Auto, Duplex: Full
Priority Tag disable
IPv6 RA Guard disable
Last clearing of show interface counters: 3w1d01h
Queueing strategy: fifo
Receive Statistics:
    0 packets, 0 bytes
    Unicasts: 0, Multicasts: 0, Broadcasts: 0
    64-byte pkts: 0, Over 64-byte pkts: 0, Over 127-byte pkts: 0
    Over 255-byte pkts: 0, Over 511-byte pkts: 0, Over 1023-byte pkts: 0
    Over 1518-byte pkts(Jumbo): 0
    Runts: 0, Jabbers: 0, CRC: 0, Overruns: 0
    Errors: 0, Discards: 0
Transmit Statistics:
    47228 packets, 3721254 bytes
    Unicasts: 580, Multicasts: 2493, Broadcasts: 44155
    Underruns: 0
    Errors: 0, Discards: 0
Rate info:
    Input 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate
    Output 0.001072 Mbits/sec, 2 packets/sec, 0.00% of line-rate
Time since last interface status change: 00:23:52