netapp qos

Internet Café Router QoS settings are mainly to ensure that every day the machine can have bandwidth, so as to ensure the stability and balance of internet cafes. The Internet Café Router QoS has two most important parts, namely the minimum bandwidth and the maximum bandwidth. Minimum bandwidth can be understood to be guaranteed bandwidth; Maximum bandwidth: When the network is idle, you can fully use th

release the Qdisc root lock, invokes Dev_hard_start_xmit to send SKB by driver, and then judges the return value, and if it is NETDEV_TX_OK, returns QDISC_ Qlen qdisc Queue Length; if it is netdev_tx_locked, there is a lock exception, which is not discussed here; if Netdev_tx_busy is returned, invoke DEV_REQUEUE_SKB to re-enter the queue Traffic control also supports controlling the package, which invokes NETIF_RECEIVE_SKB for the package, which invokes handle_ing. Handle_ing first to determin

1. use Qos to limit upload speed step 1. Define the host range S3760enS3760 # confS3760 (config) # access-list101permitiphost192.168.1.101any ---- define IPS3760 (config) for Speed Limit # access-list102permitiphost192.168.1.102any Step 2. Create a rule class, application 1. use Qos to limit the upload speed step 1. Define the host range of the desired speed limit S3760en S3760 # conf S3760 (config) # acces

In the classification process of QoS, the most important thing is to configure different priorities for different packets, and sort the packets of inbound switches by priority, then, the switch executes the corresponding QoS behavior based on the priority value. The first step of data packet priority sorting is to classify data packets. Classification Rules can use the priority bits of the 802.1p priority f

Application description:A VPN is established between the branch AR1830) and the Headquarters R3640) through IPSec. In actual environments, AR18xx uses the PPPoE-Client dialing method to access the Internet, its Dialer port dynamically obtains the IP address from the PPPoE Server,This determines that the IPSec VPN between the PPPoE Client Branch and the headquarters has a fixed public IP address) can only be automatically negotiated by IKE. At the same time, in order to effectively and reasonably

QoS learning notes marking: 1. the class-map.class-map defined [match-all/match-any] {map-name} is not typed by default. define the match command matchmatch access-group {NO} match input-interface {interface} match class-map {map-name} class-map nested match source-address {mac-address} source mac address match destination-address {mac-address} destination mac address match vlan {vlan-ID} match ip dscp {DSCP} match ip precedencc {precedence} match pro

Hybrid testing of QOS and ACL in a vswitch: Declaration: the correspondence between queues and priorities in QOS is as follows: Traffic Class table---------------------Port Priority Traffic Class---------------------------Gi0/4 0 1Gi0/4 1 0Gi0/4 2 0Gi0/4 3 1Gi0/4 4 2Gi0/4 5 2Gi0/4 6 3Gi0/4 7 3 Lab device: One IXIA device and one vswitch Device, The test line is as follows: IXIA PORT SWITCH PORT 1 ----------

24-port full-Gigabit Switch error frame Filtering test QoS test master knowledge of the following 24-port full-Gigabit Switch knowledge, such as broadcast forwarding and latency test. You can easily select your preferred method to implement 24 full gigabit switches. Many methods will make you suddenly enlightened. Test of broadcast forwarding and latency of www.2cto.com this test measures the packet loss rate of the tested device when forwarding the b

Aggregatable Networks:Coexistence between voice and video trafficLack of bandwidth, end-to-end latency, jitter delay, packet lossAddressing bandwidth scarcity:1, Update bandwidth2, forwarded as important traffic3, 2-layer compression4, compressed 3 laminarDelay:1, processing delay2, Queue delay3, serial delay (8bit converted to one byte)4, Link delayTo resolve the delay:1, Update bandwidth2, forward the important traffic3, compression 2-layer load4, compressed IP headerPacket loss rate:1,tail dr

above. Personally think that u32 match can match different protocols such as IP TCP ICMP, and match such as IP segment, port, etc., but after all, not as iptables more flexible, while u32 match for two layers of sense, which all make it through iptables/ebtables Mark aims to make the filter more flexible and controllable. For two examples, the first is TC + iptables to the IP address 192.168.1.1 packet to do QoS, limit bps to 2Mbit, allow burst bps

During Enterprise O M, we often find that the traffic increases in some cases when synchronizing data with some or the same server. To ensure the normal operation of the network, we can actually use the QOS provided by windows to limit the bandwidth used during synchronization. Here I will share the following operations: 1. Open the Group Policy on the server that needs to set QOS, start-run-gpedit. msc2.

Application descriptionPurpose: Enable NAT and QOS at the same time on AR1830. The data stream sent from PC1 is defined as 5 with a Gold priority. at least 50% of the ADSL bandwidth must be guaranteed; data Streams sent from PC2 are defined as multimedia (priority 3). At least 20% of the ADSL bandwidth must be guaranteed; Network Management (Priority 7) must ensure 10% of the bandwidth, but when the network is not busy,Each data stream can exceed the

Cisco's QoS speed limit and h3c a little difference, but overall, h3c of the comparison slag, the unit is not the same, the H3C car unit is KPBS, and the Cisco Police speed limit unit is bits per SECONDS,H3C this skipped. The theory of the token barrel is not verbose.Configure the QoS speed-limiting process on the ASA as follows:Steps:Step 1: Create ACLs to match streamsAccess-list rate_limit_lan-2 Extended

From: http://mybroadband.co.za/vb/archive/index.php/t-18042.html There are 4 commands used to set the QoS: At + cgeqminAt + cgeqreqAt + cgqminAt + cgqreq These commands set the QoS "window" that will be used to check ifConnection can be accepted. Let say you set the following QoS window: Min 64 K (d) 32 K (u)REQ 144 K (d) 64 K (u) The network will then accept th

Strictly speaking, cos and ToS are only a tag mechanism of QoS.The QoS range is too large, involving the marking and classification of the incoming data stream and the speed limit, the congestion avoidance and management of the network backbone, and the queue scheduling mechanism at the network egress.Cos indicates the priority of L2 isl or 802.1Q data frames. The value ranges from 0 to 7;TOS is the service type tag of layer-3 data packets, which is a

inter-frame encoding macro block. The intra-Frame Prediction macro block is not the same as the intra-frame encoding in H.263, the predicted intra-frame encoding method is more efficient than the non-predicted intra-frame encoding method, but it reduces the re-synchronization performance of intra-frame encoding, you can set the intra-Frame Prediction flag to restore this performance. (2) There are two types of clips that only contain intra-frame macro blocks, one is intra-frame (I slice), and t

There is a bit of crooked nuts on the forum sigh "Cisco router QoS project monitoring is always painful", admittedly, the general router traffic monitoring, using cacti to do, and due to the different upgrade version number, and the router iOS version is different, and very difficult, Some programs even need to TFTP download the written TCL script to the router operating system to perform, to cooperate with the retrieval.After 2 months of continuous g

In the process of enterprise operation and maintenance, often found with some servers or with some server data synchronization, you will find that some of the time the traffic will be larger, in order to ensure that the network is running, we can actually use the QoS of Windows to limit the use of synchronization bandwidth, here I share its operating methods: 1. Open the Group Policy above the server on which you need to set

DM-ioband is not integrated in mainstream kernel and must be patched for use. Besides, it must be the source code of the kernel community, if I patch the kernel with a red hat, an error is reported... Http://sourceforge.net/apps/trac/ioband/wiki/dm-ioband After the patch is downloaded, mark it and make menuconfig. Then, check the ioband module under LVM/raid/devicemapper, re-compile and install the kernel, and restart lsmod | grep ioband, if you can see ioband, it indicates that the installation

I recently read an article about QOS, which is good. ========================================================== === Detailed description of IP QoS stream classification methods [Url] www.net130.com [/url] Date: 2007-11-18 views: 3337 Source: blog.sina.com.cn/stimwooi discussed with my colleagues the priority of qostraffic and resolution traffic. Later I found this article. . In RFC 791, the TOS-bit IP prec