diff --git a/pages/ch_libconfig.md b/pages/ch_libconfig.md
index 708eb24d..4a1c4908 100755
--- a/pages/ch_libconfig.md
+++ b/pages/ch_libconfig.md
@@ -1125,7 +1125,7 @@ Table 14. DBAPI configuration parameters
-Table 15. eutils library configuration parameters
+Table 15.1. eutils library configuration parameters
| Purpose | [Registry section]
Registry name
Environment variable | Valid values | Default |
|-------------|--------------------------------------------------------------------|--------------|-----------------------|
@@ -1133,6 +1133,23 @@ Table 15. eutils library configuration parameters
+[These parameters](#ch_libconfig.T.eutilscli_library_configurat) tune the behavior of the Eutils Client library (misc/eutils_client).
+
+
+
+Table 15.2. misc/eutils_client library configuration parameters
+
+| Purpose | [Registry section]
Registry name
Environment variable | Valid values | Default |
+|-------------|--------------------------------------------------------------------|--------------|-----------------------|
+| EUtils client number of retries. | **`[EUTILS_CLIENT]`**
**`MAX_RETRIES`**
**`NCBI_CONFIG__EUTILS_CLIENT__MAX_RETRIES`** | int | 9 |
+| Timeout for opening EUTILS service HTTP connection. | **`[EUTILS_CLIENT]`**
**`CONN_TIMEOUT`**
**`NCBI_CONFIG__EUTILS_CLIENT__CONN_TIMEOUT`** | any floating point value \>= 0.0 | default HTTP timeout |
+| The **`WAIT_TIME*`** parameters describe the wait time before opening new connections in case of communication errors. **`WAIT_TIME`** is the initial wait after the first error. | **`[EUTILS_CLIENT]`**
**`WAIT_TIME`**
**`NCBI_CONFIG__EUTILS_CLIENT__WAIT_TIME`** | floating point \>= 0.0 | 0 seconds |
+| The limit of increasing wait time using **`WAIT_TIME_MULTIPLIER`** and **`WAIT_TIME_INCREMENT`**. | **`[EUTILS_CLIENT]`**
**`WAIT_TIME_MAX`**
**`NCBI_CONFIG__EUTILS_CLIENT__WAIT_TIME_MAX`** | floating point \>= 0.0 | 3 seconds |
+| **`WAIT_TIME_MULTIPLIER`** and **`WAIT_TIME_INCREMENT`** specify the way wait time is increased if errors continue to happen (next\_wait\_time = prev\_wait\_time \* multiplier + increment). | **`[EUTILS_CLIENT]`**
**`WAIT_TIME_INCREMENT`**
**`NCBI_CONFIG__EUTILS_CLIENT__WAIT_TIME_INCREMENT`** | any floating point value \>= 0.0 | 0.5 seconds |
+| See **`WAIT_TIME_INCREMENT`** | **`[EUTILS_CLIENT]`**
**`WAIT_TIME_MULTIPLIER`**
**`NCBI_CONFIG__EUTILS_CLIENT__WAIT_TIME_MULTIPLIER`** | any floating point value \>= 1.0 | 1.0 |
+
+
+
Distributed Computing (GRID) Specific Parameters