catalyst 4948

This article is published by NetEase Cloud. Van Hin Xin (This article is only for internal sharing, if you need to reprint, please obtain the consent of the author authorization.) ）Recently, big data-related technologies and traditional database technology are a lot of integration and mutual reference. The traditional database strength lies in its proven SQL optimizer experience, the weakness lies in the distributed field of high availability, fault tolerance, scalability, and so on, in time, l

Vswitch Virtual Network (Virtual LANs) settings: VLAN division and external VLAN routing settings on Catalyst 5000 Assign a VTP Domain) Add Cat5000 to the domain Specify the relay Port(A Trunk) Dynamic ISL Allocate VLAN to Port Set VLAN 20 Configure the Router Note: There are three VLANs, which are routed between VLANs through the Router. ----------------------------------------------------------------- Allocate VTP Domains What is VTP? VTP is short f

Vswitch Virtual Network (Virtual LANs) settings:VLAN division and external VLAN routing settings on Catalyst 5000Assign a VTP Domain)Add Cat5000 to the domainSpecify the relay port (a Trunk)Dynamic ISLAllocate VLAN to PortSet VLAN 20Configure the RouterNote: There are three VLANs, which are routed between VLANs through the Router.-Allocate VTP DomainsWhat is VTP?VTP is short for VLAN Trunk Protocol. It provides each device (router or LAN-switch) to se

Investment Protection and Development Options With the development and changes of the Enterprise, you can leverage the Scalable Cisco stack architecture to ensure the synchronous development of your LAN. Cisco provides the industry's most flexible, scalable, and manageable stacking architecture for the Catalyst 3500 XL series and the Catalyst 2900 XL series switches with gigabit performance. You can create

market ATI and nvidia two independent video cards occupy an absolute advantage, this period we will introduce the ATI video card driver installation settings. ATI graphics driver features and installation With the introduction of the "Catalyst (Catalyst) 2.1" drive, ATI has reversed its previous drive to update slow bugs and many other diseases. The driver has been able to do a one-month update to fix th

exceed-action drop Policy-map output-policy-20m Class Output-class Police 20000000 1000000 exceed-action drop Policy-map input-policy-20m Class Input-class Police 20000000 1000000 exceed-action drop Interface fastethernet?/? Service-policy input input-policy-5m Service-policy Output output-policy-5m Smart Ethernet Switch Series The Cisco Catalyst 2960 Series Smart Ethernet switch is a new, fixed-configuration standalone device family that provides de

Solutions to nf_conntrack: Table full, dropping Packet Nf_conntrack works on Layer 3 and supports IPv4 and IPv6, while ip_conntrack only supports IPv4.Currently, most ip_conntrack _ * has been replaced by nf_conntrack _ *. Many ip_conntrack _ * are only alias. The original ip_conntrack/proc/sys/NET/IPv4/Netfilter/still exists, however, the new nf_conntrack is in/proc/sys/NET/Netfilter/, which should be backward compatible: $ Pwd /Proc/sys/NET/IPv4/Netfilter $ Pwd /Proc/sys/NET/Netfilter

compatibility: $ pwd /proc/sys/net/ipv4/netfilter $ pwd /proc/sys/net/netfilter To view the current number of connections: # grep Ip_conntrack/proc/slabinfo Ip_conntrack 38358 64324 304 1:tunables 4948 4948 216 Find out the current ranking of Ip_conntrack: $ cat/proc/net/ip_conntrack | Cut-d '-F 10 | cut-d ' = '-F 2 | Sort | uniq-c | Sort-nr | Head-n 10 Nf_conntrack/ip_conntrack is related to NAT, used to

Tags: ONS memory targe SDN title Technology comm decision Spark SQLFrom the decision to write spark SQL source analysis of the article, to now one months of time, the land continues almost finished, here also do a integration and index, convenient for everyone to read, here give reading order:) First Article The core process of Spark SQL source analysis Second article Spark SQL Catalyst Source Code Analysis Sqlparser Third article Spark SQL

Tags: managed pat LOB Ubuntu OSS SDN img proc I/OThe Cisco Application Policy Infrastructure Controller Enterprise Module (APIC-EM) is a software-defined network (SDN) controller that coordinates and manages the local area network (LAN) and wide area network (WAN) comprised of Cisco infrastructure. Apic-em hosts a large number of embedded services, including (but not limited to) network PNP, path tracking, PKI certificate infrastructure, and network assets. You can view all of these apps from th

The topology is as follows: 1. Catalyst 6509 Switch configuration Scheme1.1 configure Layer-2 switchingConsole> (enable) set system name bg-sw-01/device nameBg-sw-01> (enable) set passwordEnter old password:Enter new password: test/device passwordRetype new password: testBg-sw-01> (enable) set enablepassEnter old password:Enter new password: test/device passwordRetype new password: testBg-sw-01> (enable) set banner motd % Welcome to the c6509 in the

For the connection between the switches, there should be more familiar two kinds: first, is stacked, two, is cascaded. The cascading approach is relatively easy to create bottlenecks between the switches, while stacking technology can increase the backplane rate, can eliminate the bottleneck of the connection between the switches, but by the limitations of distance and so on, and the number of switches is more restrictive. Cisco's switch clustering technology can be seen as a combination of tier

. Set the password for the Hacluster user# echo "123456" |passwd--stdin hacluster2. Start the heartbeat graphical interface to configure MySQL high-availability cluster resources# Hb_gui 3. Open the Heartbeat run status detector#crm_mon Monitor heartbeat operation last Updated:mon Jul 23:54:16 2014Current DC:node2.example.com (ea4acb13-d59e-4948-b17b-18 177D30E6CA) 2 Nodes Configured.1 Resources configured.============node:node2.example.com (EA4ACB13-

Switch stack Technology 1. catlyst 1900 ------- most of them use chrysanthemum chains (I think there is no difference with cascade), but cisco thinks they are stacks: (www.2cto.com chrysanthemum chains: as the name implies, A vswitch is connected in a string (using a crossover line ). In this case, the first server must communicate with the fourth server, and must pass through two or three servers. We can imagine that data needs to be forwarded multiple times during transmission. The communicati

CISCO 6509 core switch WS-C6509-1300AC = Catalyst 6509 Chassis w/1300 w ac Power SupplyRedundant Power WS-CAC-1300W/2 Catalyst 6000 Second 1300 w ac Power SupplySwitch Engine WS-X6K-S2-MSFC2 Catalyst 6500 Supervisor Engine-2, 2GE, plus MSFC-2/PFC-2Redundant switching engine WS-X6K-S2-MSFC2/2 Catalyst 6500 Red. Sup2, 2G

. util. MLUtils $. loadLibSVMFile (MLUtils. scala: 134)At org. apache. spark. ml. source. libsvm. LibSVMRelation. buildScan (LibSVMRelation. scala: 49)At org.apache.spark. SQL .exe cution. CES. performancestrategy $. apply (performancestrategy. scala: 135)At org. apache. spark. SQL. catalyst. planning. QueryPlanner $ anonfun $1. apply (QueryPlanner. scala: 58)At org. apache. spark. SQL. catalyst. planning.