Cisco Nexus Series switches architecture enables access to the ASIC shell. You can use an ASIC shell to access a shell prompt specific to the device front panel and fabric module line cards.
The following examples describe how you can access the command-line broadcom based shell (bcm-shell) and how to read from these ASICS, although it need not be limited to these ASICs.
Accessing the Broadcom Shell with the CLI (bcm-shell)
Syntax: bcm-shell module module_number [instance_number:command]
Query the Broadcom Shell for detailed VLAN information:
n9k-sw-1# sh vlan id 101
| VLAN | Name | Status | Ports |
|---|---|---|---|
| 101 | VLAN0101 | active | Po1, Po22, Eth1/1, Eth1/2 |
| Eth1/47, Eth1/48 |
| VLAN | Type | Vlan-mode |
|---|---|---|
| 101 | enet | CE |
n9k-sw-1# bcm-shell module 1
Warning: BCM shell access should be used with caution
Entering bcm shell on module 1
Available Unit Numbers: 0
bcm-shell.0> vlan 101
Current settings:
VRF=3
OuterTPID=0x8100
LearnDisable=1
UnknownIp6McastToCpu=0
UnknownIp4McastToCpu=1
Ip4Disable=0
Ip6Disable=0
Ip4McastDisable=0
Ip6McastDisable=1
Ip4McastL2Disable=0
Ip6McastL2Disable=0
L3VrfGlobalDisable=0
MplsDisable=0
CosqEnable=0
MiMTermDisable=0
Cosq=-277706854
Ip6McastFloodMode=MCAST_FLOOD_UNKNOWN
Ip4McastFloodMode=MCAST_FLOOD_UNKNOWN
L2McastFloodMode=MCAST_FLOOD_UNKNOWN
IfClass=17
bcm-shell.0>
Query the Broadcom Shell for detailed MAC table information:
n9k-sw-1# show mac address-table
Legend:* - primary entry
G - Gateway MAC
(R) - Routed MAC
O - Overlay MAC
age - seconds since last seen+ - primary entry using vPC Peer-Link
(T) - True, (F) - False
| VLAN | MAC Address | Type | age | Secure | NTFY | Ports |
|---|---|---|---|---|---|---|
| * 2501 | 5087.89d4.5495 | static | - | F | F | Vlan2501 |
| * 2502 | 5087.89d4.5495 | static | - | F | F | Vlan2502 |
| G - | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
| G 1 | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
| G 101 | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
| G 102 | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
| G 2501 | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
| G 2502 | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
| G 201 | 5087.89d4.5495 | static | - | F | F | sup-eth1(R) |
n9k-sw-1#
n9k-sw-1# bcm-shell module 1
Warning: BCM shell access should be used with caution
Entering bcm shell on module 1
Available Unit Numbers: 0
bcm-shell.0> l2 show
mac=50:87:89:d4:54:95 vlan=31174 GPORT=0x80000202 port=0x80000202(vxlan) Static Hit
mac=50:87:89:d4:54:95 vlan=31173 GPORT=0x80000201 port=0x80000201(vxlan) Static Hit
bcm-shell.0>