This object is used to configure the routing context ID for firmware upgrade. Context ID 0 is for default context. Context ID 1 is for mgmt context. A virtual context defines a VRF table (Virtual Routing and Forwarding) which is referred when an IP packet is received or transmitted by specified interfaces. The switch creates 2 routing contexts by default, one is 'default' to serve front port IP traffics and the other is 'mgmt' to solely serve the OOB IP traffics. Virtual Context 'default'consists of a 'default' VRF table and the switch front ports. Virtual Context 'mgmt' consists of a 'mgmt' VRF table and the switch OOB port. The virtual context is transparent to most switch applications such as Telnet, HTTP, DHCP... However, some applications have to specify the active routing context under different user scenarios such as ping, tracerout, tftp (including the copy commands, firmware upgrade, logging server (for syslog), snmp agent, SNTP client, TACACS client and RADIUS client.