menu "QoS and/or fair queueing" config ADK_KERNEL_NET_SCH_CSZ boolean default n config ADK_KERNEL_NET_SCH_NETEM boolean default n config ADK_KERNEL_NET_QOS boolean default n config ADK_KERNEL_NET_ESTIMATOR boolean default n config ADK_KERNEL_NET_SCHED #prompt "kmod-net-sched.................... QoS and/or fair queueing support" boolean default n help When the kernel has several packets to send out over a network device, it has to decide which ones to send first, which ones to delay, and which ones to drop. This is the job of the queueing disciplines, several different algorithms for how to do this "fairly" have been proposed. If you say N here, you will get the standard packet scheduler, which is a FIFO (first come, first served). If you say Y here, you will be able to choose from among several alternative algorithms which can then be attached to different network devices. This is useful for example if some of your network devices are real time devices that need a certain minimum data flow rate, or if you need to limit the maximum data flow rate for traffic which matches specified criteria. This code is considered to be experimental. To administer these schedulers, you'll need the user-level utilities from the package iproute2+tc at . That package also contains some documentation; for more, check out . This Quality of Service (QoS) support will enable you to use Differentiated Services (diffserv) and Resource Reservation Protocol (RSVP) on your Linux router if you also say Y to the corresponding classifiers below. Documentation and software is at . comment "Queueing/Scheduling" config ADK_KPACKAGE_KMOD_NET_SCH_CBQ prompt "kmod-sched-cbq.................... Class Based Queueing (CBQ)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Class-Based Queueing (CBQ) packet scheduling algorithm. This algorithm classifies the waiting packets into a tree-like hierarchy of classes; the leaves of this tree are in turn scheduled by separate algorithms. See the top of for more details. CBQ is a commonly used scheduler, so if you're unsure, you should say Y here. Then say Y to all the queueing algorithms below that you want to use as leaf disciplines. config ADK_KPACKAGE_KMOD_NET_SCH_HTB prompt "kmod-sched-htb.................... Hierarchical Token Bucket (HTB)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Hierarchical Token Buckets (HTB) packet scheduling algorithm. See for complete manual and in-depth articles. HTB is very similar to CBQ regarding its goals however is has different properties and different algorithm. config ADK_KPACKAGE_KMOD_NET_SCH_HFSC prompt "kmod-sched-hfsc................... Hierarchical Fair Service Curve (HFSC)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Hierarchical Fair Service Curve (HFSC) packet scheduling algorithm. config ADK_KPACKAGE_KMOD_NET_SCH_ATM prompt "kmod-sched-atm.................... ATM Virtual Circuits (ATM)" tristate depends ADK_KPACKAGE_KMOD_ATM select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the ATM pseudo-scheduler. This provides a framework for invoking classifiers, which in turn select classes of this queuing discipline. Each class maps the flow(s) it is handling to a given virtual circuit. See the top of ) for more details. config ADK_KPACKAGE_KMOD_NET_SCH_PRIO prompt "kmod-sched-prio................... Multi Band Priority Queueing (PRIO)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use an n-band priority queue packet scheduler. config ADK_KPACKAGE_KMOD_NET_SCH_RED prompt "kmod-sched-red.................... Random Early Detection (RED)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Random Early Detection (RED) packet scheduling algorithm. See the top of for more details. config ADK_KPACKAGE_KMOD_NET_SCH_SFQ prompt "kmod-sched-sfq.................... Stochastic Fairness Queueing (SFQ)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Stochastic Fairness Queueing (SFQ) packet scheduling algorithm . See the top of for more details. #config ADK_KPACKAGE_KMOD_NET_SCH_TEQL # prompt "kmod-sched-teql................... True Link Equalizer (TEQL)" # tristate # select ADK_KERNEL_NET_SCHED # default n # help # Say Y here if you want to use the True Link Equalizer (TLE) packet # scheduling algorithm. This queueing discipline allows the combination # of several physical devices into one virtual device. # # See the top of for more details. config ADK_KPACKAGE_KMOD_NET_SCH_TBF prompt "kmod-sched-tbf.................... Token Bucket Filter (TBF)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Token Bucket Filter (TBF) packet scheduling algorithm. See the top of for more details. config ADK_KPACKAGE_KMOD_NET_SCH_GRED prompt "kmod-sched-gred................... Generic Random Early Detection (GRED)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y here if you want to use the Generic Random Early Detection (GRED) packet scheduling algorithm for some of your network devices (see the top of for details and references about the algorithm). config ADK_KPACKAGE_KMOD_NET_SCH_DSMARK prompt "kmod-sched-dsmark................. Differentiated Services marker (DSMARK)" tristate select ADK_KERNEL_NET_SCHED default n help Say Y if you want to schedule packets according to the Differentiated Services architecture proposed in RFC 2475. Technical information on this method, with pointers to associated RFCs, is available at . config ADK_KPACKAGE_KMOD_NET_SCH_INGRESS prompt "kmod-sched-ingress................ Ingress Qdisc" tristate select ADK_KERNEL_NET_SCHED select ADK_KERNEL_NETFILTER select ADK_KERNEL_NET_CLS_ACT default n help Say Y here if you want to use classifiers for incoming packets. If unsure, say Y. comment "Classification" config ADK_KERNEL_NET_CLS boolean select ADK_KERNEL_NET_SCHED default n config ADK_KPACKAGE_KMOD_NET_CLS_BASIC prompt "kmod-cls-basic.................... Elementary classification (BASIC)" tristate select ADK_KERNEL_NET_CLS depends on ADK_LINUX_2_6 default n help Say Y here if you want to be able to classify packets using only extended matches and actions. config ADK_KPACKAGE_KMOD_NET_CLS_TCINDEX prompt "kmod-cls-tcindex.................. Traffic-Control Index (TCINDEX)" tristate select ADK_KERNEL_NET_CLS default n help Say Y here if you want to be able to classify packets based on traffic control indices. You will want this feature if you want to implement Differentiated Services together with DSMARK. config ADK_KPACKAGE_KMOD_NET_CLS_ROUTE4 prompt "kmod-cls-route4................... Routing decision (ROUTE)" tristate select ADK_KERNEL_NET_CLS default n help If you say Y here, you will be able to classify packets according to the route table entry they matched. config ADK_KPACKAGE_KMOD_NET_CLS_FW prompt "kmod-cls-fw....................... Netfilter mark (FW)" tristate select ADK_KERNEL_NET_CLS default n help If you say Y here, you will be able to classify packets according to netfilter/firewall marks. config ADK_KPACKAGE_KMOD_NET_CLS_U32 prompt "kmod-cls-u32...................... Universal 32bit comparisons w/ hashing (U32)" tristate select ADK_KERNEL_NET_CLS default n help Say Y here to be able to classify packets using a universal 32bit pieces based comparison scheme. config ADK_KPACKAGE_KMOD_NET_CLS_U32_PERF prompt ".................................. Performance counters support" bool select ADK_KERNEL_NET_CLS depends ADK_KPACKAGE_KMOD_NET_CLS_U32 default n help Say Y here to make u32 gather additional statistics useful for fine tuning u32 classifiers. config ADK_KPACKAGE_KMOD_NET_CLS_U32_MARK prompt ".................................. Netfilter marks support" bool select ADK_KERNEL_NET_CLS depends ADK_KPACKAGE_KMOD_NET_CLS_U32 depends ADK_KPACKAGE_KMOD_NET_CLS_FW default n help Say Y here to be able to use netfilter marks as u32 key. comment "Actions" config ADK_KERNEL_NET_CLS_ACT boolean select ADK_KERNEL_NET_SCHED select ADK_KERNEL_NET_ESTIMATOR default n config ADK_KPACKAGE_KMOD_NET_CLS_POLICE prompt "kmod-act-police................... Traffic Policing" tristate select ADK_KERNEL_NET_CLS_ACT depends ADK_LINUX_2_4 default n help Say Y here if you want to do traffic policing, i.e. strict bandwidth limiting. This action replaces the existing policing module. config ADK_KPACKAGE_KMOD_NET_ACT_POLICE prompt "kmod-act-police................... Traffic Policing" tristate select ADK_KERNEL_NET_CLS_ACT depends ADK_LINUX_2_6 default n help Say Y here if you want to do traffic policing, i.e. strict bandwidth limiting. This action replaces the existing policing module. config ADK_KPACKAGE_KMOD_NET_ACT_GACT prompt "kmod-act-gact..................... Generic actions" tristate select ADK_KERNEL_NET_CLS_ACT depends ADK_LINUX_2_6 default n help Say Y here to take generic actions such as dropping and accepting packets. config ADK_KPACKAGE_KMOD_NET_ACT_MIRRED prompt "kmod-act-mirred................... Redirecting and Mirroring" tristate select ADK_KERNEL_NET_CLS_ACT depends ADK_LINUX_2_6 default n help Say Y here to allow packets to be mirrored or redirected to other devices. config ADK_KPACKAGE_KMOD_NET_ACT_IPT prompt "kmod-act-ipt...................... IPtables targets" tristate select ADK_KERNEL_NET_CLS_ACT select ADK_KPACKAGE_KMOD_IP_NF_IPTABLES depends ADK_LINUX_2_6 default n help Say Y here to be able to invoke iptables targets after successful classification. config ADK_KPACKAGE_KMOD_NET_ACT_PEDIT prompt "kmod-act-pedit.................... Packet Editing" tristate select ADK_KERNEL_NET_CLS_ACT depends ADK_LINUX_2_6 default n help Say Y here if you want to mangle the content of packets. endmenu