Rental of Cisco Jakarta Switches The Difference of Cisco Nexus 9500 Vs Catalyst 6500
Why choose Cisco Nexus 9000 switch? You can register at least 10 reasons, such as fast, measurable, safe. What are the bright features of the Nexus 9000 series compared to the popular Catalyst 6500 core switches?
Nexus 9500 and Catalyst 6500 are both very reliable core switches but serve different purposes.
The Catalyst 6500 Switching platform is perfect for the core / backbone of the campus, where the Nexus 9500 Switching Series is intended for core / data center aggregation.
Catalyst 6500 Series switches
- Catalyst 6500 supports centralized forwarding, where supervisors make forwarding decisions, or distributed forwarding, where line cards make forwarding decisions.
- The Cisco Nexus 9500 Series does all data plane processing on the I / O module and fabric module. This frees supervisors to focus exclusively on scaling up control areas, which are important in large-scale Data Centers.
- Nexus 9500 has a switch fabric or fabric module located in a separate part of the chassis, apart from other cards. Because of this architecture, the Nexus 9500 watchdog only manages the control area.
- Linecards on the Catalyst 6500 are integrated in the switch fabric to the supervisor itself.
The Nexus 9500 platform has an 8-port 100 Gigabit Ethernet CFP2 line card, which is designed for use in the aggregation switch role.
Modern Data Centers switch from the 10GbE transition to 40GbE and the Nexus 9500 supports different 40GbE QSFP + line cards. Catalyst 6500 now also has the possibility to add a 40GbE line card.
1 / 10GbE
Because the Nexus 9500 is a pure Data Center Switch, SFP + 1 / 10Gbase-T and 1 / 10GbE liner cards are available. The Catalyst 6500 platform, which is intended for campus, still focuses on pure gigabit interfaces but also has 10GbE linecards to connect aggregation / access switches.
But for 10GbE, the Nexus 9500 has a number of high density 10GbE options that Catalyst 6500 does not have, such as 48-port SFP + and 48 port 10GBase-T line cards. The Catalyst 6500 only has 4-, 8- or 16-port 10GbE line cards available.
Both the Nexus 9500 and Catalyst 6500 have a set of common high-end L3 switching features, such as full routing protocol support and QoS capabilities. However, each platform has unique capabilities that often affect which platform to use. Here are some platform-specific features:
VSS (Virtual Switching System)
Virtual Switching System (VSS) mode is a Cisco grouping technology that combines two Catalyst 6500 Switches into a single virtual switch with integrated control fields. The advantage of this design is the multi-chassis link aggregation and high availability without the concerns of Spanning Tree. VSS members are connected by virtual switch links (VSLs) using standard Gigabit Ethernet or 10 Gigabit connections between VSS members.
VSS simplifies network configuration and operation by providing a loop-free Layer 2 topology using two Catalyst 6500 Switches that act as one large Virtual Switch.
vPC (Virtual Port-Channel)
Virtual PortChannel (vPC) allows links that are physically connected to two different Cisco Nexus devices to appear as one PortChannel to the third device. The third device can be a switch, server, or other network device that supports EtherChannel. VPC provides Layer 2 multipathing, eliminating blocked Spanning Tree Protocol ports, allowing you to create redundancy by increasing bandwidth, enabling multiple parallel paths between nodes and balancing traffic loads in cases where alternative paths exist. vPC, compared to VSS, does not rely on integrated control fields so they operate independently.
The Catalyst 6500 platform has the ability to add a number of service module line cards that can expand system capabilities. Some examples of service modules are ASA-SM cards, which provide high throughput firewall capabilities, ACE cards that provide load-balancing or Wireless Service Controllers, which are able to manage up to 1,000 Access Points.
WAN and Service Interfaces
Through the use of the Common Port Interface Adapter (SIP) Interface Adapter Module, the Catalyst 6500 can support a variety of WAN interfaces, which allows great flexibility in how the switch can be used. For applications that demand fine-grained QoS or additional Ethernet services, some 7600 Ethernet Service cards are also supported.
Nexus 9500 supports the use of the Nexus 2200/2300 Series Fabric Extenders to expand system ports and provide large-scale virtual chassis in the data center. Fabric Extender can be seen as a remote line card and managed by Nexus 9500, which simplifies administration / management.
VXLAN and ACI
Nexus 9500 has support for Virtual Extensible LAN (VXLAN; network overlay protocol) bridging and routing, supporting and accelerating communication between virtual and physical servers in various data centers.
The Nexus 9000 series supports the classic NX-OS mode and ACI (Application Centric Infrastructure) mode. Cisco Application Centric Infrastructure (ACI) is an innovative architecture that radically simplifies, optimizes, and accelerates the entire cycle of application deployment usage.
Cisco ACI uses a holistic system-based approach, with strong integration between physical and virtual elements, open ecosystem models, and application-specific integrated circuits (ASIC), hardware, and software that includes innovation. This unique approach uses a common policy-based operating model in ACI-ready networks, and security elements (computing, storage in the future), overcoming IT silos and drastically reducing costs and complexity.
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