SDN/VNF

生成Protobuf的Go代码

2022年3月25日
SDN/VNF
727 clicked

Protobuf生成Go代码插件 1. 安装protoc 首先protoc –version 查询本机版本。假设从protoc2更换到protoc3. 在官方Githubhttps://github.com/protocolbuffers/protobuf/下载地址找相应版本的源码。 [crayon-641e297bd3c0f… 阅读更多 »生成Protobuf的Go代码

Vpp私有API协议入门

2022年2月25日2022年2月25日
SDN/VNF
1,054 clicked

1. VPP 接口文件 vpp同控制平面交互的定义接口位于目录vpp/src/vnet和vpp/src/plugins中的api文件；例如src/vnet/ip/ip_types.api文件中定义实例如下：

/* Hey Emacs use -*- mode: C -*- */
/*
 * Copyright (c) 2018 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

option version = "3.0.0";
manual_print typedef u8 ip4_address[4];
manual_print typedef u8 ip6_address[16];

enum address_family : u8 {
  ADDRESS_IP4 = 0,
  ADDRESS_IP6,
};

/**
 * @brief The location at which to apply a feature
 */
enum ip_feature_location: u8 {
  IP_API_FEATURE_INPUT = 0,
  IP_API_FEATURE_OUTPUT,
  IP_API_FEATURE_LOCAL,
  IP_API_FEATURE_PUNT,
  IP_API_FEATURE_DROP,
};

/* ECN code points - RFC 3168
   https://tools.ietf.org/html/rfc3168
*/
enum ip_ecn : u8 {
  IP_API_ECN_NONE = 0,
  IP_API_ECN_ECT0 = 1,
  IP_API_ECN_ECT1 = 2,
  IP_API_ECN_CE = 3,
};

/* DSCP code points - RFC 2474
   https://tools.ietf.org/html/rfc2474
   Values other than these RFC defined values are accepted.
*/
enum ip_dscp : u8 {
  IP_API_DSCP_CS0 =  0,
  IP_API_DSCP_CS1 = 8,
  IP_API_DSCP_AF11 = 10,
  IP_API_DSCP_AF12 = 12,
  IP_API_DSCP_AF13 = 14,
  IP_API_DSCP_CS2 =  16,
  IP_API_DSCP_AF21 = 18,
  IP_API_DSCP_AF22 = 20,
  IP_API_DSCP_AF23 = 22,
  IP_API_DSCP_CS3 =  24,
  IP_API_DSCP_AF31 = 26,
  IP_API_DSCP_AF32 = 28,
  IP_API_DSCP_AF33 = 30,
  IP_API_DSCP_CS4 =  32,
  IP_API_DSCP_AF41 = 34,
  IP_API_DSCP_AF42 = 36,
  IP_API_DSCP_AF43 = 38,
  IP_API_DSCP_CS5 =  40,
  IP_API_DSCP_EF =   46,
  IP_API_DSCP_CS6 =  48,
  IP_API_DSCP_CS7 =  50,
};

enum ip_proto : u8 {
  IP_API_PROTO_HOPOPT = 0,
  IP_API_PROTO_ICMP = 1,
  IP_API_PROTO_IGMP = 2,
  IP_API_PROTO_TCP = 6,
  IP_API_PROTO_UDP = 17,
  IP_API_PROTO_GRE = 47,
  IP_API_PROTO_ESP = 50,
  IP_API_PROTO_AH = 51,
  IP_API_PROTO_ICMP6 = 58,
  IP_API_PROTO_EIGRP = 88,
  IP_API_PROTO_OSPF = 89,
  IP_API_PROTO_SCTP = 132,
  IP_API_PROTO_RESERVED = 255,
};

union address_union {
  vl_api_ip4_address_t ip4;
  vl_api_ip6_address_t ip6;
};

manual_print typedef address {
  vl_api_address_family_t af;
  vl_api_address_union_t un;
};

manual_print typedef prefix {
  vl_api_address_t address;
  u8 len;
};

typedef ip4_address_and_mask
{
  vl_api_ip4_address_t addr;
  vl_api_ip4_address_t mask;
};

typedef ip6_address_and_mask
{
  vl_api_ip6_address_t addr;
  vl_api_ip6_address_t mask;
};

typedef mprefix {
  vl_api_address_family_t af;
  u16 grp_address_length;
  vl_api_address_union_t grp_address;
  vl_api_address_union_t src_address;
};

manual_print typedef ip6_prefix {
  vl_api_ip6_address_t address;
  u8 len;
};

manual_print typedef ip4_prefix {
  vl_api_ip4_address_t address;
  u8 len;
};

/** \brief
 *
 * The vl_api_[ip4|ip6]_address_with_prefix_t types are used as a type to denote
 * both an IP address and a prefix. I.e. in CIDR notation
 * '192.168.10.1/24' the address is 192.168.10.1 and the network
 * prefix is 192.168.10.0/24.
 *
 * If only an address is needed use: vl_api_address_t types and if
 * only a network prefix is needed (i.e. no hosts bits), then use the
 * vl_api_prefix_t types.
 *
 **/

manual_print typedef vl_api_prefix_t address_with_prefix;
manual_print typedef vl_api_ip4_prefix_t ip4_address_with_prefix;
manual_print typedef vl_api_ip6_prefix_t ip6_address_with_prefix;

/** \brief A context for matching prefixes against.  (Think ip prefix list.)
    The meaning (exact match / want subnets) of an unset matcher is left to the implementer.
    @param le - le mut be <= to prefix.len. Default: 255 (not set).
    @param ge - ge must be greater than le and <= max_size of prefix. Default: 255 (not set).

*/
typedef prefix_matcher {
  u8 le; /* [default=255] */
  u8 ge; /* [default=255] */
};

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/* Hey Emacs use -*- mode: C -*- */

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at:

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

option version = "3.0.0";

manual_print typedef u8 ip4_address[4];

manual_print typedef u8 ip6_address[16];

enum address_family : u8 {

ADDRESS_IP4 = 0,

ADDRESS_IP6,

};

/**

* @brief The location at which to apply a feature

enum ip_feature_location: u8 {

IP_API_FEATURE_INPUT = 0,

IP_API_FEATURE_OUTPUT,

IP_API_FEATURE_LOCAL,

IP_API_FEATURE_PUNT,

IP_API_FEATURE_DROP,

};

/* ECN code points - RFC 3168

https://tools.ietf.org/html/rfc3168

enum ip_ecn : u8 {

IP_API_ECN_NONE = 0,

IP_API_ECN_ECT0 = 1,

IP_API_ECN_ECT1 = 2,

IP_API_ECN_CE = 3,

};

/* DSCP code points - RFC 2474

https://tools.ietf.org/html/rfc2474

Values other than these RFC defined values are accepted.

enum ip_dscp : u8 {

IP_API_DSCP_CS0 = 0,

IP_API_DSCP_CS1 = 8,

IP_API_DSCP_AF11 = 10,

IP_API_DSCP_AF12 = 12,

IP_API_DSCP_AF13 = 14,

IP_API_DSCP_CS2 = 16,

IP_API_DSCP_AF21 = 18,

IP_API_DSCP_AF22 = 20,

IP_API_DSCP_AF23 = 22,

IP_API_DSCP_CS3 = 24,

IP_API_DSCP_AF31 = 26,

IP_API_DSCP_AF32 = 28,

IP_API_DSCP_AF33 = 30,

IP_API_DSCP_CS4 = 32,

IP_API_DSCP_AF41 = 34,

IP_API_DSCP_AF42 = 36,

IP_API_DSCP_AF43 = 38,

IP_API_DSCP_CS5 = 40,

IP_API_DSCP_EF = 46,

IP_API_DSCP_CS6 = 48,

IP_API_DSCP_CS7 = 50,

};

enum ip_proto : u8 {

IP_API_PROTO_HOPOPT = 0,

IP_API_PROTO_ICMP = 1,

IP_API_PROTO_IGMP = 2,

IP_API_PROTO_TCP = 6,

IP_API_PROTO_UDP = 17,

IP_API_PROTO_GRE = 47,

IP_API_PROTO_ESP = 50,

IP_API_PROTO_AH = 51,

IP_API_PROTO_ICMP6 = 58,

IP_API_PROTO_EIGRP = 88,

IP_API_PROTO_OSPF = 89,

IP_API_PROTO_SCTP = 132,

IP_API_PROTO_RESERVED = 255,

};

union address_union {

vl_api_ip4_address_t ip4;

vl_api_ip6_address_t ip6;

};

manual_print typedef address {

vl_api_address_family_t af;

vl_api_address_union_t un;

};

manual_print typedef prefix {

vl_api_address_t address;

u8 len;

};

typedef ip4_address_and_mask

{

vl_api_ip4_address_t addr;

vl_api_ip4_address_t mask;

};

typedef ip6_address_and_mask

{

vl_api_ip6_address_t addr;

vl_api_ip6_address_t mask;

};

typedef mprefix {

vl_api_address_family_t af;

u16 grp_address_length;

vl_api_address_union_t grp_address;

vl_api_address_union_t src_address;

};

manual_print typedef ip6_prefix {

vl_api_ip6_address_t address;

u8 len;

};

manual_print typedef ip4_prefix {

vl_api_ip4_address_t address;

u8 len;

};

/** \brief

* The vl_api_[ip4|ip6]_address_with_prefix_t types are used as a type to denote

* both an IP address and a prefix. I.e. in CIDR notation

* '192.168.10.1/24' the address is 192.168.10.1 and the network

* prefix is 192.168.10.0/24.

* If only an address is needed use: vl_api_address_t types and if

* only a network prefix is needed (i.e. no hosts bits), then use the

* vl_api_prefix_t types.

**/

manual_print typedef vl_api_prefix_t address_with_prefix;

manual_print typedef vl_api_ip4_prefix_t ip4_address_with_prefix;

manual_print typedef vl_api_ip6_prefix_t ip6_address_with_prefix;

/** \brief A context for matching prefixes against. (Think ip prefix list.)

The meaning (exact match / want subnets) of an unset matcher is left to the implementer.

@param le - le mut be <= to prefix.len. Default: 255 (not set).

@param ge - ge must be greater than le and <= max_size of prefix. Default: 255 (not set).

typedef prefix_matcher {

u8 le; /* [default=255] */

u8 ge; /* [default=255] */

};

2. VPP 接口帮助文档生成其他类型的接口文件，需要… 阅读更多 »Vpp私有API协议入门

Anycast概述

2021年12月26日2021年12月26日
BGP, Network
1,684 clicked

1. 通信方式及IP类型 Anycast与Multicast,Unicast,Broadcast是四种不同的IP通信方式。按照通信方式，也可以将我们熟知的IP地址类型分为如下几种：Unicast IP,Multicast IP,Broadcast IP与Anycast IP。 1.1. Unicast IP 在客户端与媒体服务器… 阅读更多 »Anycast概述

VLAN_GRE_VXLAN三种协议在Linux+Vpp环境的互通

2021年12月5日2021年12月5日
Network, SDN/VNF, VPP_OVS
785 clicked

文中三种协议类型，都通过建立veth pair打通Linux和VPP环境。 1. VLAN 1.1. 创建Linux veth pair对进行配置

# 创建Linux veth pair对进行配置
ip link add ki type veth peer name vi
# vpp 接管 host interface 接口 
vppctl create host-interface name vi 
vppctl set int state host-vi up

# 创建Linux veth pair对进行配置

ip link add ki type veth peer name vi

# vpp 接管 host interface 接口

vppctl create host-interface name vi

vppctl set int state host-vi up

1.2. linux kernel创建vlan vlan基本介绍 linux网卡的vlan配置 [crayon-64… 阅读更多 »VLAN_GRE_VXLAN三种协议在Linux+Vpp环境的互通

密码保护：vpp+agent环境搭建

2021年12月3日
VPP_OVS
605 clicked

无法提供摘要。这是一篇受保护的文章。

Quagga如何配置BGP(转载)

2021年7月20日2022年1月15日
FRR/QUAGGA, SDN/VNF
2,110 clicked

1. Quagga软件的安装与启动 lede如何安装quagga

    opkg update
    opkg install quagga
    opkg install quagga-zebra quagga-ripd quagga-watchquagga quagga-vtysh quagga-bgpd quagga-ospfd
    /etc/init.d/quagga start    #这是启动
    /etc/init.d/quagga enable   #自启动

opkg update

opkg install quagga

opkg install quagga-zebra quagga-ripd quagga-watchquagga quagga-vtysh quagga-bgpd quagga-ospfd

/etc/init.d/quagga start #这是启动

/etc/init.d/quagga enable #自启动

centos如何安装quagga

    yum update
    yum install quagga -y

1 2	yum update yum install quagga -y

加载BPG配置文件启动软件，Zebra和BGPd一起工作,zebra负责… 阅读更多 »Quagga如何配置BGP(转载)

OVS常用命令与使用总结(转载)

2021年6月26日2023年2月22日
SDN/VNF, VPP_OVS
1,109 clicked

1. 进程启动先准备ovs的工作目录，数据库存储路径等

mkdir -p /etc/openvswitch
mkdir -p /var/run/openvswitch

1 2	mkdir -p /etc/openvswitch mkdir -p /var/run/openvswitch

先启动ovsdb-server

ovsdb-server /etc/openvswitch/conf.db \
-vconsole:emer -vsyslog:err -vfile:info \
--remote=punix:/var/run/openvswitch/db.sock \
--private-key=db:Open_vSwitch,SSL,private_key \
--certificate=db:Open_vSwitch,SSL,certificate \
--bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert --no-chdir \
--log-file=/var/log/openvswitch/ovsdb-server.log \
--pidfile=/var/run/openvswitch/ovsdb-server.pid \
--detach --monitor

ovsdb-server /etc/openvswitch/conf.db \

-vconsole:emer -vsyslog:err -vfile:info \

--remote=punix:/var/run/openvswitch/db.sock \

--private-key=db:Open_vSwitch,SSL,private_key \

--certificate=db:Open_vSwitch,SSL,certificate \

--bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert --no-chdir \

--log-file=/var/log/openvswitch/ovsdb-server.log \

--pidfile=/var/run/openvswitch/ovsdb-server.pid \

--detach --monitor

ps: 如果想清除配置，可以先删除/etc/openvswitch/*，然后再手动创建一个数据库： [cra… 阅读更多 »OVS常用命令与使用总结(转载)