diff --git a/gopher_tech.md b/gopher_tech.md
index 8141a1ebd7d4cf2692fadd58ce2a05703093169b..642cd65e0ddcf48c5f5183b41f0b6e69c219394c 100644
--- a/gopher_tech.md
+++ b/gopher_tech.md
@@ -218,9 +218,9 @@
| ------------ | -------------- | ------------ | ----- | ------------------------------------------------------------ |
| tgid | | key | | 进程ID |
| role | | key | | 客户端/服务端 |
-| client_ip | | key | | 客户端：本地IP；服务端：对端IP
备注：如果存在NAT，此IP为NAT后的IP |
-| server_ip | | key | | 客户端：对端IP；服务端：本地IP
备注：如果存在NAT，此IP为NAT后的IP |
-| server_port | | key | | 客户端：对端端口；服务端：本地端口
备注：如果存在NAT，此Port为NAT后的Port |
+| client_ip | | key | | 客户端：本地IP；服务端：对端IP |
+| server_ip | | key | | 客户端：对端IP；服务端：本地IP
备注：K8S场景支持Cluster IP转换成Backend IP |
+| server_port | | key | | 客户端：对端端口；服务端：本地端口
备注：K8S场景支持Cluster Port转换成Backend Port |
| protocol | | key | | 协议族（IPv4、IPv6） |
| rx_bytes | tcp_tx_rx(0x8) | Gauge | bytes | rx bytes |
| tx_bytes | tcp_tx_rx(0x8) | Gauge | bytes | tx bytes |
@@ -251,8 +251,8 @@
| tgid | | key | | 进程ID |
| role | | key | | 客户端/服务端 |
| client_ip | | key | | 客户端：本地IP；服务端：对端IP |
-| server_ip | | key | | 客户端：对端IP；服务端：本地IP |
-| server_port | | key | | 客户端：对端端口；服务端：本地端口 |
+| server_ip | | key | | 客户端：对端IP；服务端：本地IP
备注：K8S场景支持Cluster IP转换成Backend IP |
+| server_port | | key | | 客户端：对端端口；服务端：本地端口
备注：K8S场景支持Cluster Port转换成Backend Port |
| protocol | | key | | 协议族（IPv4、IPv6） |
| retran_packets | tcp_abn(0x01) | Gauge | | total number of retrans |
| retran_ratio | tcp_abn(0x01) | Gauge | | retran ratio |
@@ -305,9 +305,9 @@
| metrics_name | table_name | metrics_type | unit | metrics description | Support |
| --------------- | ---------- | ------------ | ---- | ------------------------------------------------------------ | -------------------------- |
| tgid | | key | | Process ID of l7 session. | openSSL 1.1.1, Go SSL,JSSE |
-| client_ip | | key | | Client IP address of l7 session.
备注：如果存在NAT，此IP为NAT后的IP | |
-| server_ip | | key | | Server IP address of l7 session.
备注：如果存在NAT，此IP为NAT后的IP | |
-| server_port | | key | | Server Port of l7 session.
备注：如果存在NAT，此Port为NAT后的Port | |
+| client_ip | | key | | Client IP address of l7 session. | |
+| server_ip | | key | | Server IP address of l7 session.
备注：K8S场景支持Cluster IP转换成Backend IP | |
+| server_port | | key | | Server Port of l7 session.
备注：K8S场景支持Cluster Port转换成Backend Port | |
| l4_role | | key | | Role of l4 protocol(TCP Client/Server or UDP) | |
| l7_role | | key | | Role of l7 protocol(Client or Server) | |
| protocol | | key | | Name of l7 protocol(http/http2/mysql...) | |
@@ -366,28 +366,28 @@
实体名：proc_flow_perf
-| metrics_name | table_name | metrics_type | unit | metrics description | Support |
-| ------------- | -------------- | ------------ | ---- | ----------------------------------------------------------- | ------- |
-| tgid | | key | | Process ID | |
-| remote_ip | | key | | 对端IP地址 | |
-| port | | key | | 客户端：对端Port；服务端：本地Port； | |
-| role | | key | | 客户端/服务端 | |
-| tx_delay | proc_flow_perf | histogram | us | Delay in the Tx direction of the application TCP link. | |
-| rx_delay | proc_flow_perf | histogram | us | Delay in the Rx direction of the application TCP link. | |
-| tx_throughput | proc_flow_perf | gauge | bps | Throughput in the Tx direction of the application TCP link. | TO BE |
-| rx_throughput | proc_flow_perf | gauge | bps | Throughput in the Rx direction of the application TCP link. | TO BE |
+| metrics_name | table_name | metrics_type | unit | metrics description | Support |
+| ------------- | -------------- | ------------ | ---- | ----------------------------------------------------------- | ------------------------------------------------------------ |
+| tgid | | key | | Process ID | |
+| remote_ip | | key | | 对端IP地址 | |
+| port | | key | | 客户端：对端Port；服务端：本地Port； | |
+| role | | key | | 客户端/服务端 | |
+| tx_delay | proc_flow_perf | histogram | us | Delay in the Tx direction of the application TCP link. | |
+| rx_delay | proc_flow_perf | histogram | us | Delay in the Rx direction of the application TCP link. | 支持内核4.18（EulerOS版本）
>= 5.10
或者应用使用socket option SO_TIMESTAMPNS |
+| tx_throughput | proc_flow_perf | gauge | bps | Throughput in the Tx direction of the application TCP link. | TO BE |
+| rx_throughput | proc_flow_perf | gauge | bps | Throughput in the Rx direction of the application TCP link. | TO BE |
### 进程性能
实体名：proc_perf
-| metrics_name | table_name | metrics_type | unit | metrics description | Support |
-| ------------- | ---------- | ------------ | ---- | ----------------------------------- | ------- |
-| tgid | | key | | Process ID | |
-| tx_delay | proc_perf | histogram | us | TCP delay in the Tx direction. | |
-| rx_delay | proc_perf | histogram | us | TCP delay in the Rx direction. | |
-| tx_throughput | proc_perf | gauge | bps | TCP throughput in the Tx direction. | TO BE |
-| rx_throughput | proc_perf | gauge | bps | TCP throughput in the Rx direction. | TO BE |
+| metrics_name | table_name | metrics_type | unit | metrics description | Support |
+| ------------- | ---------- | ------------ | ---- | ----------------------------------- | ------------------------------------------------------------ |
+| tgid | | key | | Process ID | |
+| tx_delay | proc_perf | histogram | us | TCP delay in the Tx direction. | |
+| rx_delay | proc_perf | histogram | us | TCP delay in the Rx direction. | 支持内核4.18（EulerOS版本）
>= 5.10
或者应用使用socket option SO_TIMESTAMPNS |
+| tx_throughput | proc_perf | gauge | bps | TCP throughput in the Tx direction. | TO BE |
+| rx_throughput | proc_perf | gauge | bps | TCP throughput in the Rx direction. | TO BE |