The serial management connector (SER MGT) is an RJ-45 port and provides a terminal connection to the SP console.
Figure 74 7120 Controller Serial Management Port
The network management connector (NET MGT) is an RJ-45 port and provides an alternate terminal interface to the SP console.
Figure 75 7120 Controller Network Management Port
There are four RJ-45 Gigabit Ethernet ports (NET0, NET1, NET2, NET3) located on the motherboard that operate at 10/100/1000 Mbit/sec. These network interfaces must be configured before use.