Table of Contents
Related Manuals for Cisco Catalyst Blade 3020
Summary of Contents for Cisco Catalyst Blade 3020
- Page 1 Integrating the Cisco Catalyst Blade Switch 3020 for the HP c-Class BladeSystem into the Cisco Data Center Network Architecture Design Guide © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
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Page 2: Table Of Contents
RPVST+ Configuration ......................24 Inter-Switch Link Configuration ....................24 Server-Port Configuration ...................... 26 Server Default Gateway Configuration................... 27 RSPAN Configuration ......................28 © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 28... -
Page 3: Introduction
The HP c-Class BladeSystem backplane provides power and network connectivity to the blades. The base I/O module slots house a pair of Cisco Catalyst Blade Switch 3020s, which provide a highly available and multihomed environment wherein each server blade is attached through a Gigabit Ethernet port to each Cisco Catalyst Blade Switch 3020. - Page 4 Design Guide Figure 2. Enclosure Interconnections Using Full-Height Servers Figure 3. Enclosure Interconnections Using Half-Height Servers © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 4 of 28...
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Page 5: Cisco Catalyst Blade Switch 3020 For Hp
Design Guide Cisco Catalyst Blade Switch 3020 for HP This section briefly describes the Cisco Catalyst Blade Switch 3020 for HP and explains how the blade servers within the HP c-Class BladeSystem are physically connected to the switching modules. The Cisco Catalyst Blade Switch 3020 provides enhanced Layer 2 services (known as Layer 2+ or Intelligent Ethernet switching) to the HP c-Class BladeSystem. -
Page 6: Cisco Catalyst Blade Switch 3020 Features
Cisco Catalyst Blade Switch 3020 Features This section highlights information about the protocols and features provided by the Cisco Catalyst Blade Switch 3020 that help integrate the HP c-Class BladeSystem enclosure into the Cisco Data Center Network Architecture. Spanning Tree... - Page 7 Each blade switch is dual homed to each aggregation switch through a 2- port Cisco EtherChannel interface. In this figure the blocked links are indicated in red. In this example, only four of the eight uplinks from each blade switch are used. The network designer can make those EtherChannel uplinks more robust (up to four 4 ports each), or use them to connect other devices such as intrusion detection systems (IDSs) or standalone servers.
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Page 8: Traffic Monitoring
Note: The IEEE 802.1w protocol is enabled by default when running spanning tree in RPVST+ or MST mode on the Cisco Catalyst Blade Switch 3020. The Cisco Catalyst Blade Switch 3020 enables PVST+ for VLAN 1 by default. The Spanning Tree Protocol uses the path cost value to determine the shortest distance to the root bridge. -
Page 9: Link Aggregation Protocols
Ethernet interfaces and negotiating a logical connection. PAgP is a Cisco proprietary protocol that can be run only on Cisco switches or on switches manufactured by vendors that are licensed to support PAgP. LACP is a standard protocol that allows Cisco switches to manage Ethernet channels between any switches that conform to the IEEE 802.3ad protocol. -
Page 10: Data Center Network Architecture
The architecture of the data center infrastructure must address the requirements necessary to create a highly available, scalable, and secure network. This section describes the basic architecture necessary to meet these goals. It is a synopsis of the Cisco Data Center Network Architecture; for details about this architecture, visit: http://www.cisco.com/en/US/solutions/ns340/ns517/ns224/ns304/net_design_guidance0900aecd80... -
Page 11: Aggregation Layer
A Layer 2 domain meets these requirements by providing the following: Adjacency between servers and service devices ● A deterministic, fast-converging, loop-free topology ● © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 11 of 28... -
Page 12: High Availability
Design Goals This section describes the design goals for deploying blade servers and the functions that the Cisco Catalyst Blade Switch 3020 supports in data centers. It discusses high availability, scalability, and management. High Availability Data centers are the repository of critical business applications that support the continual operation of an enterprise. -
Page 13: High Availability For The Bladesystem Switching Infrastructure
Servers are typically configured with multiple NICs and dual homed to the access layer switches to provide backup connectivity to the business application. High availability is an important design consideration in the data center. The Cisco Catalyst Blade Switch 3020 has numerous features and characteristics that contribute to a reliable, highly available network. -
Page 14: Scalability
This reception requires that the switch can load balance the traffic across the ports connected to the server NIC team. The Cisco Catalyst Blade Switch 3020 supports the IEEE 802.3ad standard and Gigabit Ethernet port channels. SLB teaming can only be used on full-height servers, because it requires that both NICS go to the same upstream switch. -
Page 15: Slot Count
Layer 2 connectivity of the server farms. Figure 8 depicts deployment of a service switch. Figure 8. Data Center Scaling with Service Switches © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 15 of 28... -
Page 16: Management
Figure 9. Design of Data Center Core Management The Cisco Catalyst Blade Switch 3020 is accessible for management and configuration by any of the following traffic paths: Out-of-band (OOB) management ● In-band management ●... -
Page 17: In-Band Management
VLAN as the management VLAN. Serial Console Port The front panel of the Cisco Catalyst Blade Switch 3020 has an RJ-45 serial port that can be used to manage the switch through the CLI. The CLI can be accessed by connecting directly to the console port with the serial port of a workstation or remotely by using terminal servers and IP connectivity protocols such as Telnet. -
Page 18: Management Options
VLANs. The Cisco Catalyst Blade Switch 3020 has 8 external Gigabit Ethernet ports; any of them may be used to support network-monitoring devices and network-management traffic. Using secure protocols, such as SSH or HTTPS, maintains the integrity of communications between the switch and the management station. -
Page 19: Network Topologies Using The Cisco Catalyst Blade Switch 3020
Typical deployment in the data center uses the classic triangle topology. This deployment model has no single point of failure. The Cisco Catalyst Blade Switch 3020s are dual homed to the aggregation layer, providing link redundancy. The Spanning Tree Protocol manages the physical loops created by the uplinks between the aggregation and access switches, facilitating a predictable and fast-converging topology. - Page 20 The recommended topology provides a high level of availability to the blade servers except in one failure scenario. If all the uplinks to each of the aggregation switches from a single Cisco Catalyst Blade Switch 3020 are unavailable, the server NICs homed to that Cisco Catalyst Blade Switch 3020 are not notified by default.
- Page 21 Step 3. Configuration of port channels between the Cisco Catalyst Blade Switch 3020 and aggregate switches Step 4. Trunking of port channels between the Cisco Catalyst Blade Switch 3020 and aggregate switches Step 5. Configuration of server ports on the Cisco Catalyst Blade Switch 3020...
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Page 22: Alternative Topology
An alternative topology that does not rely on the Spanning Tree Protocol to account for redundant paths in the network (because there are none) is to have the two Cisco Catalyst Blade Switch 3020s connect directly to two aggregate switches using a port channel supporting the server-farm VLANs. -
Page 23: Configuration Details
This design supports traffic monitoring using SPAN or RSPAN. For example, a network-analysis device connected to the external ports on the front of the Cisco Catalyst Blade Switch 3020 may capture locally mirrored traffic. Alternatively, RSPAN traffic can be carried on the Cisco Catalyst Blade Switch 3020 uplinks if bandwidth usage is not a concern. -
Page 24: Vlan Configuration
The use of multiple line cards within a single switch reduces the possibility of the point-to-point port channel becoming a single point of failure in the network. Configure the active LACP members on aggregate 1 to Cisco Catalyst Blade Switch 3020 switch A as follows: (config)# interface GigabitEthernet12/1 (config-if)# description <<** Connected to Switch-A **>>... - Page 25 Design Guide (config-if)# channel-group 1 mode active Configure the passive LACP members on Cisco Catalyst Blade Switch 3020 switch A as follows: (config) # interface GigabitEthernet0/19 (config-if)# description <<** Connected to Aggregation-1 **>> (config-if)# channel-group 1 mode on (config) # interface GigabitEthernet0/20 (config-if)# description <<** Connected to Aggregation-1 **>>...
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Page 26: Server-Port Configuration
Note: The NIC teaming driver configuration (that is, the use of a virtual MAC address) must be considered when configuring Port Security. © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 26 of 28... -
Page 27: Server Default Gateway Configuration
1 ip 10.10.10.1 standby 1 timers 1 3 standby 1 priority 50 standby 1 preempt delay minimum 60 standby 1 authentication <password> © 2008 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 27 of 28... -
Page 28: Rspan Configuration
RSPAN allows for remote traffic monitoring in the data center. Define source and destination sessions to mirror interesting traffic to a remote VLAN captured by network-analysis tools. Configure a VLAN for RSPAN on the Cisco Catalyst Blade Switch 3020 and the aggregate switch as follows: (config)# vlan <vlanID>...