NetworkInfrastructure

The NIC switching infrastructure has a total of five switches currently.

A total of three are utilized for the private network (red):

• Dell PowerConnect 8024 is a 24 port 10Gbps switch
  • Web monitor interface at 172.17.202.249
• The Cisco Catalyst 2960s is a 24 port 1Gb switch with two 10Gbps SFP+ trunk ports
  • Console connection available on Mecha at ttyS0
  • 10Gbps optical trunk port to Powerconnect
    • If connection fails, cisco side may "lose" transmit power; this can be restored by turning the sfp port off and back on
  • Backup 1Gbe wire connection to Cisco port 17 [deactivated by STP]
• The R35 private network switch is present to allow IPMI ports on R35 hosts to use shorter cables

Two switches are used for the public-facing (128.223.202.0/25) network.

• The R34 switch has the actual WAN link
• The R35 switch has one 1Gbps link to the R34 switch

The R34 switch is a ProCurve 3500yl. It has 10Gbps trunk capability but not in RJ45 format.

New HP A5500 switch is coming which has 10Gbit SFP+ ports as is an SFP+ RJ45 transceiver. From this we will connect to the 10G WAN link, and to the R35 public switch at 10G as well.