Contents
- 1 What is control plane in Nexus?
- 2 What is control plane in Cisco router?
- 3 Where does the control plane operate on a Cisco Nexus 7000 Series switch?
- 4 What are exception packets?
- 5 What is the difference between Cisco Nexus and Catalyst?
- 6 What is the difference between Nexus 7k and 9k?
- 7 How does control plane policing work in Cisco?
- 8 What is the supervisor module in Cisco NX-OS?
What is control plane in Nexus?
Control plane. Handles all routing protocol control traffic. These protocols, such as the Border Gateway Protocol (BGP) and the Open Shortest Path First (OSPF) Protocol, send control packets between devices. These packets are destined to router addresses and are called control plane packets.
What is control plane in Cisco router?
The control plane is where a Cisco switch or router learns about its environment, using various protocols to talk to neighboring devices. Corrupting control plane data: In this type of attack, malicious control plane protocol packets are used to inject rogue information to affect the actual flow of data.
What is control plane policing?
Control plane policing (abbreviated as CPP for Cisco IOS routers and as CoPP for Cisco IOS switches) is an application of quality of service (QoS) technologies in a security con- text that is available on switches and routers running Cisco IOS that allows the configura- tion of QoS policies that rate limit the traffic …
What does a Cisco Nexus do?
Nexus Switches provide a quick and dependable switching infrastructure aimed at giving users the high performance needed for the virtualized environment in next-generation data centers.
Where does the control plane operate on a Cisco Nexus 7000 Series switch?
The Nexus 7000 Series Switch takes a distributed control plane approach. It has a multi-core on each I/O module, as well as a multi-core for switch control plane on the Supervisor module. It offloads intensive tasks to the I/O module CPU for access control lists (ACL) and FIB programming.
What are exception packets?
Exceptions is a catch-all bucket for packets that are not expected. For example, you get a packet with vlan tags outside the allowed range, such as packets with an invalid ethernet header. The exception packets are ultimately defined by each vSwitch implementation. Cisco Nexus 1000v defines its own stats.
What is difference between control plane and data?
Control plane refers to the all functions and processes that determine which path to use to send the packet or frame. Data plane refers to all the functions and processes that forward packets/frames from one interface to another based on control plane logic. It is responsible for forwarding actual IP packet.
What is the main purpose of control plane policing?
The Control Plane Policing feature allows users to configure a quality of service (QoS) filter that manages the traffic flow of control plane packets to protect the control plane of Cisco IOS routers and switches against reconnaissance and denial-of-service (DoS) attacks.
What is the difference between Cisco Nexus and Catalyst?
Amongst the array of switches are the Cisco Nexus and Catalyst switches that are the most popular. While Nexus switches are a flexible and feature-rich solution that offers ease of integration and usage, the Catalyst switches allow better control over the throughput traffic.
What is the difference between Nexus 7k and 9k?
There are a few key differences between the Cisco Nexus 7000 Series and Nexus 9000 DC switches. The Nexus 9000 supports Application Centric Infrastructure (ACI) in contrast to the Nexus 7000 switches. Finally, it is foreseen that the Nexus 9000 will complement the Nexus 7000 as data centers transition to ACI.
What is the control plane policy in Cisco NX-OS?
When you bring up your Cisco NX-OS device for the first time, the Cisco NX-OS software installs the default copp-system-policy to protect the supervisor module from DoS attacks. This is the only control plane policy map in the system and cannot be modified or deleted.
What kind of control plane does the Nexus 7000 have?
The Nexus 7000 Series Switch takes a distributed control plane approach. It has a multi-core on each I/O module, as well as a multi-core for switch control plane on the Supervisor module. It offloads intensive tasks to the I/O module CPU for access control lists (ACL) and FIB programming.
How does control plane policing work in Cisco?
To protect the control plane, the Cisco NX-OS device segregates different packets destined to the control plane into different classes. Once these classes are identified, the Cisco NX-OS device polices or marks down packets, which ensure that the supervisor module is not overwhelmed.
What is the supervisor module in Cisco NX-OS?
Runs the components meant for Cisco NX-OS device management purposes such as the command-line interface (CLI) and Simple Network Management Protocol (SNMP). The supervisor module has both the management plane and control plane and is critical to the operation of the network.