ST、SC、FC、LC光纤头

sflow

Juniper sflow配置:

set protocols sflow agent-id {agent IP地址}
set protocols sflow polling-interval 30
set protocols sflow sample-rate ingress 3000
set protocols sflow sample-rate egress 3000
set protocols sflow collector {接受数据的IP}
set protocols sflow interfaces {ge-0/1/1.0 指定端口} 

H3C sflow配置：

sflow agent ip 10.193.1.1  !设置此设备的某端口地址为agent地址
 sflow source ip 10.193.1.1 !设置此设备的某端口地址为发送源地址
 sflow collector 1 vpn-instance mgmt ip 10.5.0.208 !设置collector1服务器地址，端口号默认6343
 
int te1/0/0/7 !进入需要采集的接口
 sflow flow collector 1 !与collector 1 绑定
 sflow sampling-rate 1000 !设置采样率
 sflow counter collector 1 !计数器绑定collector1
 sflow counter interval 60 !计数器间隔60s
!

Cisco Netflow设置

flow record yst  !配置netflow记录器yst
 match ipv4 source address !记录内容ipv4源地址
 match ipv4 destination address !记录目标地址
 collect counter bytes !计数器单位bytes
 collect counter packets !计数器单位packets
!
!
flow exporter yst !配置netflow输出器
 destination 10.5.0.208 !设置服务器地址
 source TenGigabitEthernet0/0/0 !设置发包源地址
 dscp 63 !设置qos dscp
 ttl 15 !设置ttl
 transport udp 6343 !配置端口号
 export-protocol netflow-v5 !配置版本为v5，各版本区别百度
 template data timeout 30 超时时间30
!
!
flow monitor yst !设置监视器yst
 exporter yst !绑定输出器yst
 record yst !绑定记录器yst

int gi1/0/1 !开启接口flow
ip flow monitor yst input
ip flow monitor yst output

bird+juniper BGP RTBH

bird实例

log syslog all;
debug protocols off;
debug commands 0;

router id 1.1.1.1;

protocol static rtbh {
	route 99.99.99.99/32 blackhole;
	route 88.88.88.88/32 blackhole;
}

filter export_rtbh_out {
	# Limit to static routes
	if (proto = "rtbh") then
	{
		# Limit to /32 host routes (for now)
		if net.len = 32 then
		{
			bgp_community.add((65001,9999));
			bgp_next_hop = 192.0.2.1;
			accept;
		}
	}
	reject;
}

protocol bgp ER3 {
	description "iBGP to Edge Router 3 for RTBH";
	debug { states, events };
	local 1.1.1.1 as 65001;
	neighbor 3.3.3.3 as 65001;
	import none;
	export filter export_rtbh_out;
}
protocol bgp ER4 {
	description "iBGP to Edge Router 4 for RTBH";
	debug { states, events };
	local 1.1.1.1 as 65001;
	neighbor 4.4.4.4 as 65001;
	import none;
	export filter export_rtbh_out;
}

JUNOS 配置实例

routing-options {
	static {
		route 192.0.2.1/32 discard;
	}
}

protocols {
	bgp {
		group RTBH {
			type internal;
			import import-from-rs;
			expor deny-all;
			neighbor 1.1.1.1;
		}
	}
}

policy-options {
	policy-statement deny-all {
		term 1 {
			then reject;
		}
	}
	policy-statement import-from-rs {
		term 1 {
			from {
				community RTBH;
				route-filter 0.0.0.0/0 prefix-length-range /32-/32;
			}
			then accept;
		}
		term reject {
			then reject;
		}
	}
	community RTBH members 65001:9999;
}

抄录自https://gist.github.com/floatingstatic/854aa504a92ab8bc3e044e434ec378c4

手掌脱皮手指干裂

又是一年秋季，有些人手的手掌脱皮，指尖脱皮龟裂且裂口出外翻。

如果只是脱皮其实还好，也就手掌的掌纹变白皮肤犹如枯枝扎人，但是如果指尖脱皮又开裂，就生不如死没，一是痛二是指尖的触觉犹如覆盖了一层502胶水。

我的解决办法是在发现贴创口贴的地方皮肤明显更加湿润和热水泡胀手脚皮肤去角质层想到的，然后跑药店买了几幅医用手套，
在睡前洗涂抹新鲜的肉芦荟（用护手霜或甘油也可以）再戴手套睡觉，反复折腾几天后皮肤就恢复了正常机能。

如果情况严重的建议先去医院断诊。

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加班文化

早些年(新千年之前), 一群人下岗创业, 长三角和珠三角蒸蒸日上, 内陆的乡镇企业逐渐因为产业
升级开始没落, 内陆乡镇的人开始外出到沿海打工.

这些人的相同点, 没什么钱/背井离乡.

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