Cisco Cisco Catalyst Blade Switch 3020 for HP White Paper
Design Guide
© 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Server-Port Configuration
A blade server is assigned a specific port on the blade switch. This assignment is predetermined by
the physical slot the blade server occupies in the enclosure. Table 1 correlates the server and
switch ports.
A blade server is assigned a specific port on the blade switch. This assignment is predetermined by
the physical slot the blade server occupies in the enclosure. Table 1 correlates the server and
switch ports.
Table 1.
Correlation of Server and Switch Ports
Cisco IOS Software CLI
Identifier
Identifier
Port Location in the Enclosure (when
using full-height servers)
using full-height servers)
Port Location in the Enclosure (when
using half-height servers)
using half-height servers)
GigabitEthernet 0/1
Server slot 1 upper
Server slot 1
GigabitEthernet 0/2
Server slot 2 upper
Server slot 2
GigabitEthernet 0/3
Server slot 3 upper
Server slot 3
GigabitEthernet 0/4
Server slot 4 upper
Server slot 4
GigabitEthernet 0/5
Server slot 5 upper
Server slot 5
GigabitEthernet 0/6
Server slot 6 upper
Server slot 6
GigabitEthernet 0/7
Server slot 7 upper
Server slot 7
GigabitEthernet 0/8
Server slot 8 upper
Server slot 8
GigabitEthernet 0/9
Server slot 1 lower
Server slot 9
GigabitEthernet 0/10
Server slot 2 lower
Server slot 10
GigabitEthernet 0/11
Server slot 3 lower
Server slot 11
GigabitEthernet 0/12
Server slot 4 lower
Server slot 12
GigabitEthernet 0/13
Server slot 5 lower
Server slot 13
GigabitEthernet 0/14
Server slot 6 lower
Server slot 14
GigabitEthernet 0/15
Server slot 7 lower
Server slot 15
GigabitEthernet 0/16
Server slot 8 lower
Server slot 16
GigabitEthernet 0/17
Dual-media uplink port 1
Dual-media uplink port 1
GigabitEthernet 0/18
Dual-media uplink port 2
Dual-media uplink port 2
GigabitEthernet 0/19
Dual-media uplink port 3
Dual-media uplink port 3
GigabitEthernet 0/20
Dual-media uplink port 4
Dual-media uplink port 4
GigabitEthernet 0/21
RJ-45 copper gigabit-only uplink port 1
RJ-45 copper gigabit-only uplink port 1
GigabitEthernet 0/22
RJ-45 copper gigabit-only uplink port 2
RJ-45 copper gigabit-only uplink port 2
GigabitEthernet 0/23
Shared port with internal cross-connection
Shared port with internal cross-connection
GigabitEthernet 0/24
Shared port with internal cross-connection
Shared port with internal cross-connection
The server ports on the blade switch support a single VLAN access and trunk configuration mode.
The operational mode chosen should support the server NIC configuration (that is, a trunking NIC
is attached to a trunking switch port). Enable PortFast for the edge devices.
The operational mode chosen should support the server NIC configuration (that is, a trunking NIC
is attached to a trunking switch port). Enable PortFast for the edge devices.
The BPDU Guard feature disables a port that receives a BPDU. This feature protects the Spanning
Tree Protocol topology by preventing the blade server from receiving BPDUs. An administrator
must manually recover a port disabled with the BPDU Guard feature. Enable the BPDU Guard
feature on all server ports that should not be receiving BPDUs.
Tree Protocol topology by preventing the blade server from receiving BPDUs. An administrator
must manually recover a port disabled with the BPDU Guard feature. Enable the BPDU Guard
feature on all server ports that should not be receiving BPDUs.
Port Security limits the number of MAC addresses permitted to access the blade-switch port.
Configure the maximum number of MAC addresses expected on the port.
Configure the maximum number of MAC addresses expected on the port.
Note: The NIC teaming driver configuration (that is, the use of a virtual MAC address) must be
considered when configuring Port Security.
considered when configuring Port Security.